| slovo | definícia |
declination
(encz) | declination,deklinace n: Zdeněk Brož |
declination
(encz) | declination,naklonění n: Zdeněk Brož |
declination
(gcide) | Refraction \Re*frac"tion\ (r?*fr?k"sh?n), n. [F. r['e]fraction.]
1. The act of refracting, or the state of being refracted.
[1913 Webster]
2. The change in the direction of ray of light, heat, or the
like, when it enters obliquely a medium of a different
density from that through which it has previously moved.
[1913 Webster]
Refraction out of the rarer medium into the denser,
is made towards the perpendicular. --Sir I.
Newton.
[1913 Webster]
3. (Astron.)
(a) The change in the direction of a ray of light, and,
consequently, in the apparent position of a heavenly
body from which it emanates, arising from its passage
through the earth's atmosphere; -- hence distinguished
as atmospheric refraction, or astronomical refraction.
(b) The correction which is to be deducted from the
apparent altitude of a heavenly body on account of
atmospheric refraction, in order to obtain the true
altitude.
[1913 Webster]
Angle of refraction (Opt.), the angle which a refracted ray
makes with the perpendicular to the surface separating the
two media traversed by the ray.
Conical refraction (Opt.), the refraction of a ray of light
into an infinite number of rays, forming a hollow cone.
This occurs when a ray of light is passed through crystals
of some substances, under certain circumstances. Conical
refraction is of two kinds; external conical refraction,
in which the ray issues from the crystal in the form of a
cone, the vertex of which is at the point of emergence;
and internal conical refraction, in which the ray is
changed into the form of a cone on entering the crystal,
from which it issues in the form of a hollow cylinder.
This singular phenomenon was first discovered by Sir W. R.
Hamilton by mathematical reasoning alone, unaided by
experiment.
Differential refraction (Astron.), the change of the
apparent place of one object relative to a second object
near it, due to refraction; also, the correction required
to be made to the observed relative places of the two
bodies.
Double refraction (Opt.), the refraction of light in two
directions, which produces two distinct images. The power
of double refraction is possessed by all crystals except
those of the isometric system. A uniaxial crystal is said
to be optically positive (like quartz), or optically
negative (like calcite), or to have positive, or negative,
double refraction, according as the optic axis is the axis
of least or greatest elasticity for light; a biaxial
crystal is similarly designated when the same relation
holds for the acute bisectrix.
Index of refraction. See under Index.
Refraction circle (Opt.), an instrument provided with a
graduated circle for the measurement of refraction.
Refraction of latitude, longitude, declination, {right
ascension}, etc., the change in the apparent latitude,
longitude, etc., of a heavenly body, due to the effect of
atmospheric refraction.
Terrestrial refraction, the change in the apparent altitude
of a distant point on or near the earth's surface, as the
top of a mountain, arising from the passage of light from
it to the eye through atmospheric strata of varying
density.
[1913 Webster] |
Declination
(gcide) | Declination \Dec`li*na"tion\, n. [L. declinatio a bending aside,
an avoiding: cf. F. d['e]clination a decadence. See
Declension.]
1. The act or state of bending downward; inclination; as,
declination of the head.
[1913 Webster]
2. The act or state of falling off or declining from
excellence or perfection; deterioration; decay; decline.
"The declination of monarchy." --Bacon.
[1913 Webster]
Summer . . . is not looked on as a time
Of declination or decay. --Waller.
[1913 Webster]
3. The act of deviating or turning aside; oblique motion;
obliquity; withdrawal.
[1913 Webster]
The declination of atoms in their descent.
--Bentley.
[1913 Webster]
Every declination and violation of the rules.
--South.
[1913 Webster]
4. The act or state of declining or refusing; withdrawal;
refusal; averseness.
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The queen's declination from marriage. --Stow.
[1913 Webster]
5. (Astron.) The angular distance of any object from the
celestial equator, either northward or southward.
[1913 Webster]
6. (Dialing) The arc of the horizon, contained between the
vertical plane and the prime vertical circle, if reckoned
from the east or west, or between the meridian and the
plane, reckoned from the north or south.
[1913 Webster]
7. (Gram.) The act of inflecting a word; declension. See
Decline, v. t., 4.
[1913 Webster]
Angle of declination, the angle made by a descending line,
or plane, with a horizontal plane.
Circle of declination, a circle parallel to the celestial
equator.
Declination compass (Physics), a compass arranged for
finding the declination of the magnetic needle.
Declination of the compass or Declination of the needle,
the horizontal angle which the magnetic needle makes with
the true north-and-south line.
[1913 Webster] |
declination
(wn) | declination
n 1: a condition inferior to an earlier condition; a gradual
falling off from a better state [syn: decline,
declination] [ant: improvement, melioration]
2: a downward slope or bend [syn: descent, declivity,
fall, decline, declination, declension, downslope]
[ant: acclivity, ascent, climb, raise, rise,
upgrade]
3: (astronomy) the angular distance of a celestial body north or
to the south of the celestial equator; expressed in degrees;
used with right ascension to specify positions on the
celestial sphere [syn: declination, celestial latitude,
dec]
4: a polite refusal of an invitation [syn: declination,
regrets] |
| | podobné slovo | definícia |
declination
(encz) | declination,deklinace n: Zdeněk Broždeclination,naklonění n: Zdeněk Brož |
magnetic declination
(encz) | magnetic declination, n: |
Angle of declination
(gcide) | Declination \Dec`li*na"tion\, n. [L. declinatio a bending aside,
an avoiding: cf. F. d['e]clination a decadence. See
Declension.]
1. The act or state of bending downward; inclination; as,
declination of the head.
[1913 Webster]
2. The act or state of falling off or declining from
excellence or perfection; deterioration; decay; decline.
"The declination of monarchy." --Bacon.
[1913 Webster]
Summer . . . is not looked on as a time
Of declination or decay. --Waller.
[1913 Webster]
3. The act of deviating or turning aside; oblique motion;
obliquity; withdrawal.
[1913 Webster]
The declination of atoms in their descent.
--Bentley.
[1913 Webster]
Every declination and violation of the rules.
--South.
[1913 Webster]
4. The act or state of declining or refusing; withdrawal;
refusal; averseness.
[1913 Webster]
The queen's declination from marriage. --Stow.
[1913 Webster]
5. (Astron.) The angular distance of any object from the
celestial equator, either northward or southward.
[1913 Webster]
6. (Dialing) The arc of the horizon, contained between the
vertical plane and the prime vertical circle, if reckoned
from the east or west, or between the meridian and the
plane, reckoned from the north or south.
[1913 Webster]
7. (Gram.) The act of inflecting a word; declension. See
Decline, v. t., 4.
[1913 Webster]
Angle of declination, the angle made by a descending line,
or plane, with a horizontal plane.
Circle of declination, a circle parallel to the celestial
equator.
Declination compass (Physics), a compass arranged for
finding the declination of the magnetic needle.
Declination of the compass or Declination of the needle,
the horizontal angle which the magnetic needle makes with
the true north-and-south line.
[1913 Webster] |
Circle of declination
(gcide) | Declination \Dec`li*na"tion\, n. [L. declinatio a bending aside,
an avoiding: cf. F. d['e]clination a decadence. See
Declension.]
1. The act or state of bending downward; inclination; as,
declination of the head.
[1913 Webster]
2. The act or state of falling off or declining from
excellence or perfection; deterioration; decay; decline.
"The declination of monarchy." --Bacon.
[1913 Webster]
Summer . . . is not looked on as a time
Of declination or decay. --Waller.
[1913 Webster]
3. The act of deviating or turning aside; oblique motion;
obliquity; withdrawal.
[1913 Webster]
The declination of atoms in their descent.
--Bentley.
[1913 Webster]
Every declination and violation of the rules.
--South.
[1913 Webster]
4. The act or state of declining or refusing; withdrawal;
refusal; averseness.
[1913 Webster]
The queen's declination from marriage. --Stow.
[1913 Webster]
5. (Astron.) The angular distance of any object from the
celestial equator, either northward or southward.
[1913 Webster]
6. (Dialing) The arc of the horizon, contained between the
vertical plane and the prime vertical circle, if reckoned
from the east or west, or between the meridian and the
plane, reckoned from the north or south.
[1913 Webster]
7. (Gram.) The act of inflecting a word; declension. See
Decline, v. t., 4.
[1913 Webster]
Angle of declination, the angle made by a descending line,
or plane, with a horizontal plane.
Circle of declination, a circle parallel to the celestial
equator.
Declination compass (Physics), a compass arranged for
finding the declination of the magnetic needle.
Declination of the compass or Declination of the needle,
the horizontal angle which the magnetic needle makes with
the true north-and-south line.
[1913 Webster]Circle \Cir"cle\ (s[~e]r"k'l), n. [OE. cercle, F. cercle, fr. L.
circulus (Whence also AS. circul), dim. of circus circle,
akin to Gr. kri`kos, ki`rkos, circle, ring. Cf. Circus,
Circum-.]
[1913 Webster]
1. A plane figure, bounded by a single curve line called its
circumference, every part of which is equally distant from
a point within it, called the center.
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2. The line that bounds such a figure; a circumference; a
ring.
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3. (Astron.) An instrument of observation, the graduated limb
of which consists of an entire circle.
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Note: When it is fixed to a wall in an observatory, it is
called a mural circle; when mounted with a telescope
on an axis and in Y's, in the plane of the meridian, a
meridian circle or transit circle; when involving
the principle of reflection, like the sextant, a
reflecting circle; and when that of repeating an
angle several times continuously along the graduated
limb, a repeating circle.
[1913 Webster]
4. A round body; a sphere; an orb.
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It is he that sitteth upon the circle of the earth.
--Is. xi. 22.
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5. Compass; circuit; inclosure.
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In the circle of this forest. --Shak.
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6. A company assembled, or conceived to assemble, about a
central point of interest, or bound by a common tie; a
class or division of society; a coterie; a set.
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As his name gradually became known, the circle of
his acquaintance widened. --Macaulay.
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7. A circular group of persons; a ring.
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8. A series ending where it begins, and repeating itself.
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Thus in a circle runs the peasant's pain. --Dryden.
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9. (Logic) A form of argument in which two or more unproved
statements are used to prove each other; inconclusive
reasoning.
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That heavy bodies descend by gravity; and, again,
that gravity is a quality whereby a heavy body
descends, is an impertinent circle and teaches
nothing. --Glanvill.
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10. Indirect form of words; circumlocution. [R.]
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Has he given the lie,
In circle, or oblique, or semicircle. --J.
Fletcher.
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11. A territorial division or district.
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Note:
The Circles of the Holy Roman Empire, ten in number, were
those principalities or provinces which had seats in the
German Diet.
[1913 Webster]
Azimuth circle. See under Azimuth.
Circle of altitude (Astron.), a circle parallel to the
horizon, having its pole in the zenith; an almucantar.
Circle of curvature. See Osculating circle of a curve
(Below).
Circle of declination. See under Declination.
Circle of latitude.
(a) (Astron.) A great circle perpendicular to the plane
of the ecliptic, passing through its poles.
(b) (Spherical Projection) A small circle of the sphere
whose plane is perpendicular to the axis.
Circles of longitude, lesser circles parallel to the
ecliptic, diminishing as they recede from it.
Circle of perpetual apparition, at any given place, the
boundary of that space around the elevated pole, within
which the stars never set. Its distance from the pole is
equal to the latitude of the place.
Circle of perpetual occultation, at any given place, the
boundary of the space around the depressed pole, within
which the stars never rise.
Circle of the sphere, a circle upon the surface of the
sphere, called a great circle when its plane passes
through the center of the sphere; in all other cases, a
small circle.
Diurnal circle. See under Diurnal.
Dress circle, a gallery in a theater, generally the one
containing the prominent and more expensive seats.
Druidical circles (Eng. Antiq.), a popular name for certain
ancient inclosures formed by rude stones circularly
arranged, as at Stonehenge, near Salisbury.
Family circle, a gallery in a theater, usually one
containing inexpensive seats.
Horary circles (Dialing), the lines on dials which show the
hours.
Osculating circle of a curve (Geom.), the circle which
touches the curve at some point in the curve, and close to
the point more nearly coincides with the curve than any
other circle. This circle is used as a measure of the
curvature of the curve at the point, and hence is called
circle of curvature.
Pitch circle. See under Pitch.
Vertical circle, an azimuth circle.
Voltaic circuit or Voltaic circle. See under Circuit.
To square the circle. See under Square.
Syn: Ring; circlet; compass; circuit; inclosure.
[1913 Webster] |
declination
(gcide) | Refraction \Re*frac"tion\ (r?*fr?k"sh?n), n. [F. r['e]fraction.]
1. The act of refracting, or the state of being refracted.
[1913 Webster]
2. The change in the direction of ray of light, heat, or the
like, when it enters obliquely a medium of a different
density from that through which it has previously moved.
[1913 Webster]
Refraction out of the rarer medium into the denser,
is made towards the perpendicular. --Sir I.
Newton.
[1913 Webster]
3. (Astron.)
(a) The change in the direction of a ray of light, and,
consequently, in the apparent position of a heavenly
body from which it emanates, arising from its passage
through the earth's atmosphere; -- hence distinguished
as atmospheric refraction, or astronomical refraction.
(b) The correction which is to be deducted from the
apparent altitude of a heavenly body on account of
atmospheric refraction, in order to obtain the true
altitude.
[1913 Webster]
Angle of refraction (Opt.), the angle which a refracted ray
makes with the perpendicular to the surface separating the
two media traversed by the ray.
Conical refraction (Opt.), the refraction of a ray of light
into an infinite number of rays, forming a hollow cone.
This occurs when a ray of light is passed through crystals
of some substances, under certain circumstances. Conical
refraction is of two kinds; external conical refraction,
in which the ray issues from the crystal in the form of a
cone, the vertex of which is at the point of emergence;
and internal conical refraction, in which the ray is
changed into the form of a cone on entering the crystal,
from which it issues in the form of a hollow cylinder.
This singular phenomenon was first discovered by Sir W. R.
Hamilton by mathematical reasoning alone, unaided by
experiment.
Differential refraction (Astron.), the change of the
apparent place of one object relative to a second object
near it, due to refraction; also, the correction required
to be made to the observed relative places of the two
bodies.
Double refraction (Opt.), the refraction of light in two
directions, which produces two distinct images. The power
of double refraction is possessed by all crystals except
those of the isometric system. A uniaxial crystal is said
to be optically positive (like quartz), or optically
negative (like calcite), or to have positive, or negative,
double refraction, according as the optic axis is the axis
of least or greatest elasticity for light; a biaxial
crystal is similarly designated when the same relation
holds for the acute bisectrix.
Index of refraction. See under Index.
Refraction circle (Opt.), an instrument provided with a
graduated circle for the measurement of refraction.
Refraction of latitude, longitude, declination, {right
ascension}, etc., the change in the apparent latitude,
longitude, etc., of a heavenly body, due to the effect of
atmospheric refraction.
Terrestrial refraction, the change in the apparent altitude
of a distant point on or near the earth's surface, as the
top of a mountain, arising from the passage of light from
it to the eye through atmospheric strata of varying
density.
[1913 Webster]Declination \Dec`li*na"tion\, n. [L. declinatio a bending aside,
an avoiding: cf. F. d['e]clination a decadence. See
Declension.]
1. The act or state of bending downward; inclination; as,
declination of the head.
[1913 Webster]
2. The act or state of falling off or declining from
excellence or perfection; deterioration; decay; decline.
"The declination of monarchy." --Bacon.
[1913 Webster]
Summer . . . is not looked on as a time
Of declination or decay. --Waller.
[1913 Webster]
3. The act of deviating or turning aside; oblique motion;
obliquity; withdrawal.
[1913 Webster]
The declination of atoms in their descent.
--Bentley.
[1913 Webster]
Every declination and violation of the rules.
--South.
[1913 Webster]
4. The act or state of declining or refusing; withdrawal;
refusal; averseness.
[1913 Webster]
The queen's declination from marriage. --Stow.
[1913 Webster]
5. (Astron.) The angular distance of any object from the
celestial equator, either northward or southward.
[1913 Webster]
6. (Dialing) The arc of the horizon, contained between the
vertical plane and the prime vertical circle, if reckoned
from the east or west, or between the meridian and the
plane, reckoned from the north or south.
[1913 Webster]
7. (Gram.) The act of inflecting a word; declension. See
Decline, v. t., 4.
[1913 Webster]
Angle of declination, the angle made by a descending line,
or plane, with a horizontal plane.
Circle of declination, a circle parallel to the celestial
equator.
Declination compass (Physics), a compass arranged for
finding the declination of the magnetic needle.
Declination of the compass or Declination of the needle,
the horizontal angle which the magnetic needle makes with
the true north-and-south line.
[1913 Webster] |
Declination compass
(gcide) | Declination \Dec`li*na"tion\, n. [L. declinatio a bending aside,
an avoiding: cf. F. d['e]clination a decadence. See
Declension.]
1. The act or state of bending downward; inclination; as,
declination of the head.
[1913 Webster]
2. The act or state of falling off or declining from
excellence or perfection; deterioration; decay; decline.
"The declination of monarchy." --Bacon.
[1913 Webster]
Summer . . . is not looked on as a time
Of declination or decay. --Waller.
[1913 Webster]
3. The act of deviating or turning aside; oblique motion;
obliquity; withdrawal.
[1913 Webster]
The declination of atoms in their descent.
--Bentley.
[1913 Webster]
Every declination and violation of the rules.
--South.
[1913 Webster]
4. The act or state of declining or refusing; withdrawal;
refusal; averseness.
[1913 Webster]
The queen's declination from marriage. --Stow.
[1913 Webster]
5. (Astron.) The angular distance of any object from the
celestial equator, either northward or southward.
[1913 Webster]
6. (Dialing) The arc of the horizon, contained between the
vertical plane and the prime vertical circle, if reckoned
from the east or west, or between the meridian and the
plane, reckoned from the north or south.
[1913 Webster]
7. (Gram.) The act of inflecting a word; declension. See
Decline, v. t., 4.
[1913 Webster]
Angle of declination, the angle made by a descending line,
or plane, with a horizontal plane.
Circle of declination, a circle parallel to the celestial
equator.
Declination compass (Physics), a compass arranged for
finding the declination of the magnetic needle.
Declination of the compass or Declination of the needle,
the horizontal angle which the magnetic needle makes with
the true north-and-south line.
[1913 Webster] |
Declination of the compass
(gcide) | Declination \Dec`li*na"tion\, n. [L. declinatio a bending aside,
an avoiding: cf. F. d['e]clination a decadence. See
Declension.]
1. The act or state of bending downward; inclination; as,
declination of the head.
[1913 Webster]
2. The act or state of falling off or declining from
excellence or perfection; deterioration; decay; decline.
"The declination of monarchy." --Bacon.
[1913 Webster]
Summer . . . is not looked on as a time
Of declination or decay. --Waller.
[1913 Webster]
3. The act of deviating or turning aside; oblique motion;
obliquity; withdrawal.
[1913 Webster]
The declination of atoms in their descent.
--Bentley.
[1913 Webster]
Every declination and violation of the rules.
--South.
[1913 Webster]
4. The act or state of declining or refusing; withdrawal;
refusal; averseness.
[1913 Webster]
The queen's declination from marriage. --Stow.
[1913 Webster]
5. (Astron.) The angular distance of any object from the
celestial equator, either northward or southward.
[1913 Webster]
6. (Dialing) The arc of the horizon, contained between the
vertical plane and the prime vertical circle, if reckoned
from the east or west, or between the meridian and the
plane, reckoned from the north or south.
[1913 Webster]
7. (Gram.) The act of inflecting a word; declension. See
Decline, v. t., 4.
[1913 Webster]
Angle of declination, the angle made by a descending line,
or plane, with a horizontal plane.
Circle of declination, a circle parallel to the celestial
equator.
Declination compass (Physics), a compass arranged for
finding the declination of the magnetic needle.
Declination of the compass or Declination of the needle,
the horizontal angle which the magnetic needle makes with
the true north-and-south line.
[1913 Webster] |
declination of the needle
(gcide) | Variation \Va`ri*a"tion\, n. [OE. variatioun, F. variation, L.
variatio. See Vary.]
1. The act of varying; a partial change in the form,
position, state, or qualities of a thing; modification;
alteration; mutation; diversity; deviation; as, a
variation of color in different lights; a variation in
size; variation of language.
[1913 Webster]
The essences of things are conceived not capable of
any such variation. --Locke.
[1913 Webster]
2. Extent to which a thing varies; amount of departure from a
position or state; amount or rate of change.
[1913 Webster]
3. (Gram.) Change of termination of words, as in declension,
conjugation, derivation, etc.
[1913 Webster]
4. (Mus.) Repetition of a theme or melody with fanciful
embellishments or modifications, in time, tune, or
harmony, or sometimes change of key; the presentation of a
musical thought in new and varied aspects, yet so that the
essential features of the original shall still preserve
their identity.
[1913 Webster]
5. (Alg.) One of the different arrangements which can be made
of any number of quantities taking a certain number of
them together.
[1913 Webster]
Annual variation (Astron.), the yearly change in the right
ascension or declination of a star, produced by the
combined effects of the precession of the equinoxes and
the proper motion of the star.
Calculus of variations. See under Calculus.
Variation compass. See under Compass.
Variation of the moon (Astron.), an inequality of the
moon's motion, depending on the angular distance of the
moon from the sun. It is greater at the octants, and zero
at the quadratures.
Variation of the needle (Geog. & Naut.), the angle included
between the true and magnetic meridians of a place; the
deviation of the direction of a magnetic needle from the
true north and south line; -- called also {declination of
the needle}.
[1913 Webster]
Syn: Change; vicissitude; variety; deviation.
[1913 Webster]Declination \Dec`li*na"tion\, n. [L. declinatio a bending aside,
an avoiding: cf. F. d['e]clination a decadence. See
Declension.]
1. The act or state of bending downward; inclination; as,
declination of the head.
[1913 Webster]
2. The act or state of falling off or declining from
excellence or perfection; deterioration; decay; decline.
"The declination of monarchy." --Bacon.
[1913 Webster]
Summer . . . is not looked on as a time
Of declination or decay. --Waller.
[1913 Webster]
3. The act of deviating or turning aside; oblique motion;
obliquity; withdrawal.
[1913 Webster]
The declination of atoms in their descent.
--Bentley.
[1913 Webster]
Every declination and violation of the rules.
--South.
[1913 Webster]
4. The act or state of declining or refusing; withdrawal;
refusal; averseness.
[1913 Webster]
The queen's declination from marriage. --Stow.
[1913 Webster]
5. (Astron.) The angular distance of any object from the
celestial equator, either northward or southward.
[1913 Webster]
6. (Dialing) The arc of the horizon, contained between the
vertical plane and the prime vertical circle, if reckoned
from the east or west, or between the meridian and the
plane, reckoned from the north or south.
[1913 Webster]
7. (Gram.) The act of inflecting a word; declension. See
Decline, v. t., 4.
[1913 Webster]
Angle of declination, the angle made by a descending line,
or plane, with a horizontal plane.
Circle of declination, a circle parallel to the celestial
equator.
Declination compass (Physics), a compass arranged for
finding the declination of the magnetic needle.
Declination of the compass or Declination of the needle,
the horizontal angle which the magnetic needle makes with
the true north-and-south line.
[1913 Webster] |
Declination of the needle
(gcide) | Variation \Va`ri*a"tion\, n. [OE. variatioun, F. variation, L.
variatio. See Vary.]
1. The act of varying; a partial change in the form,
position, state, or qualities of a thing; modification;
alteration; mutation; diversity; deviation; as, a
variation of color in different lights; a variation in
size; variation of language.
[1913 Webster]
The essences of things are conceived not capable of
any such variation. --Locke.
[1913 Webster]
2. Extent to which a thing varies; amount of departure from a
position or state; amount or rate of change.
[1913 Webster]
3. (Gram.) Change of termination of words, as in declension,
conjugation, derivation, etc.
[1913 Webster]
4. (Mus.) Repetition of a theme or melody with fanciful
embellishments or modifications, in time, tune, or
harmony, or sometimes change of key; the presentation of a
musical thought in new and varied aspects, yet so that the
essential features of the original shall still preserve
their identity.
[1913 Webster]
5. (Alg.) One of the different arrangements which can be made
of any number of quantities taking a certain number of
them together.
[1913 Webster]
Annual variation (Astron.), the yearly change in the right
ascension or declination of a star, produced by the
combined effects of the precession of the equinoxes and
the proper motion of the star.
Calculus of variations. See under Calculus.
Variation compass. See under Compass.
Variation of the moon (Astron.), an inequality of the
moon's motion, depending on the angular distance of the
moon from the sun. It is greater at the octants, and zero
at the quadratures.
Variation of the needle (Geog. & Naut.), the angle included
between the true and magnetic meridians of a place; the
deviation of the direction of a magnetic needle from the
true north and south line; -- called also {declination of
the needle}.
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Syn: Change; vicissitude; variety; deviation.
[1913 Webster]Declination \Dec`li*na"tion\, n. [L. declinatio a bending aside,
an avoiding: cf. F. d['e]clination a decadence. See
Declension.]
1. The act or state of bending downward; inclination; as,
declination of the head.
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2. The act or state of falling off or declining from
excellence or perfection; deterioration; decay; decline.
"The declination of monarchy." --Bacon.
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Summer . . . is not looked on as a time
Of declination or decay. --Waller.
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3. The act of deviating or turning aside; oblique motion;
obliquity; withdrawal.
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The declination of atoms in their descent.
--Bentley.
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Every declination and violation of the rules.
--South.
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4. The act or state of declining or refusing; withdrawal;
refusal; averseness.
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The queen's declination from marriage. --Stow.
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5. (Astron.) The angular distance of any object from the
celestial equator, either northward or southward.
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6. (Dialing) The arc of the horizon, contained between the
vertical plane and the prime vertical circle, if reckoned
from the east or west, or between the meridian and the
plane, reckoned from the north or south.
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7. (Gram.) The act of inflecting a word; declension. See
Decline, v. t., 4.
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Angle of declination, the angle made by a descending line,
or plane, with a horizontal plane.
Circle of declination, a circle parallel to the celestial
equator.
Declination compass (Physics), a compass arranged for
finding the declination of the magnetic needle.
Declination of the compass or Declination of the needle,
the horizontal angle which the magnetic needle makes with
the true north-and-south line.
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magnetic declination
(gcide) | magnetic declination \magnetic declination\ n.
The angle (at a particular location) between magnetic north
and true north; called also magnetic variation.
[WordNet 1.5] |
Parallel of declination
(gcide) | Parallel \Par"al*lel\, n.
1. A line which, throughout its whole extent, is equidistant
from another line; a parallel line, a parallel plane, etc.
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Who made the spider parallels design,
Sure as De Moivre, without rule or line ? --Pope.
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2. Direction conformable to that of another line,
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Lines that from their parallel decline. --Garth.
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3. Conformity continued through many particulars or in all
essential points; resemblance; similarity.
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Twixt earthly females and the moon
All parallels exactly run. --Swift.
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4. A comparison made; elaborate tracing of similarity; as,
Johnson's parallel between Dryden and Pope.
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5. Anything equal to, or resembling, another in all essential
particulars; a counterpart.
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None but thyself can be thy parallel. --Pope.
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6. (Geog.) One of the imaginary circles on the surface of the
earth, parallel to the equator, marking the latitude;
also, the corresponding line on a globe or map; as, the
counry was divided into North and South at the 38th
parallel.
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7. (Mil.) One of a series of long trenches constructed before
a besieged fortress, by the besieging force, as a cover
for troops supporting the attacking batteries. They are
roughly parallel to the line of outer defenses of the
fortress.
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8. (Print.) A character consisting of two parallel vertical
lines (thus, ) used in the text to direct attention to a
similarly marked note in the margin or at the foot of a
page.
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9. (Elec.) That arrangement of an electrical system in which
all positive poles, electrodes, terminals, etc., are
joined to one conductor, and all negative poles, etc., to
another conductor; -- called also multiple. Opposed to
series.
Note: Parts of a system so arranged are said to be
in parallel or
in multiple.
[Webster 1913 Suppl.]
Limiting parallels. See under Limit, v. t.
Parallel of altitude (Astron.), one of the small circles of
the sphere, parallel to the horizon; an almucantar.
Parallel of declination (Astron.), one of the small circles
of the sphere, parallel to the equator.
Parallel of latitude.
(a) (Geog.) See def. 6. above.
(b) (Astron.) One of the small circles of the sphere,
parallel to the ecliptic.
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declination
(wn) | declination
n 1: a condition inferior to an earlier condition; a gradual
falling off from a better state [syn: decline,
declination] [ant: improvement, melioration]
2: a downward slope or bend [syn: descent, declivity,
fall, decline, declination, declension, downslope]
[ant: acclivity, ascent, climb, raise, rise,
upgrade]
3: (astronomy) the angular distance of a celestial body north or
to the south of the celestial equator; expressed in degrees;
used with right ascension to specify positions on the
celestial sphere [syn: declination, celestial latitude,
dec]
4: a polite refusal of an invitation [syn: declination,
regrets] |
magnetic declination
(wn) | magnetic declination
n 1: the angle (at a particular location) between magnetic north
and true north [syn: magnetic declination, {magnetic
variation}, variation] |
|