| slovo | definícia |
equinox
(encz) | equinox,rovnodennost n: VP |
Equinox
(gcide) | Equinox \E"qui*nox\, n. [OE. equinoxium, equenoxium, L.
aequinoctium; aequus equal + nox, noctis, night: cf. F.
['e]quinoxe. See Equal, and Night.]
1. The time when the sun enters one of the equinoctial
points, that is, about March 21 and September 22. See
Autumnal equinox, Vernal equinox, under Autumnal and
Vernal.
[1913 Webster]
When descends on the Atlantic
The gigantic
Stormwind of the equinox. --Longfellow.
[1913 Webster]
2. Equinoctial wind or storm. [R.] --Dryden.
[1913 Webster] |
equinox
(wn) | equinox
n 1: either of two times of the year when the sun crosses the
plane of the earth's equator and day and night are of equal
length
2: (astronomy) either of the two celestial points at which the
celestial equator intersects the ecliptic [syn: {equinoctial
point}, equinox] |
| | podobné slovo | definícia |
autumnal equinox
(encz) | autumnal equinox,podzimní rovnodennost [fráz.] Ivan Masár |
equinoxes
(encz) | equinoxes, |
fall equinox
(encz) | fall equinox,jesenní rovnodennost [fráz.] Ivan Masár |
precession of the equinoxes
(encz) | precession of the equinoxes, n: |
spring equinox
(encz) | spring equinox,jarní rovnodennost [fráz.] Ivan Masár |
vernal equinox
(encz) | vernal equinox,jarní rovnodennost [fráz.] Ivan Masár |
Autumnal equinox
(gcide) | Autumnal \Au*tum"nal\, a. [L. auctumnalis, autumnalis: cf. F.
automnal.]
1. Of, belonging to, or peculiar to, autumn; as, an autumnal
tint; produced or gathered in autumn; as, autumnal fruits;
flowering in autumn; as, an autumnal plant.
[1913 Webster]
Thick as autumnal leaves that strow the brooks
In Vallombrosa. --Milton.
[1913 Webster]
2. Past the middle of life; in the third stage.
[1913 Webster]
An autumnal matron. --Hawthorne.
[1913 Webster]
Autumnal equinox, the time when the sun crosses the
equator, as it proceeds southward, or when it passes the
autumnal point.
Autumnal point, the point of the equator intersected by the
ecliptic, as the sun proceeds southward; the first point
of Libra.
Autumnal signs, the signs Libra, Scorpio, and Sagittarius,
through which the sun passes between the autumnal equinox
and winter solstice.
[1913 Webster] |
Equation of equinoxes
(gcide) | Equation \E*qua"tion\, n. [L. aequatio an equalizing: cf. F.
['e]quation equation. See Equate.]
1. A making equal; equal division; equality; equilibrium.
[1913 Webster]
Again the golden day resumed its right,
And ruled in just equation with the night. --Rowe.
[1913 Webster]
2. (Math.) An expression of the condition of equality between
two algebraic quantities or sets of quantities, the sign =
being placed between them; as, a binomial equation; a
quadratic equation; an algebraic equation; a
transcendental equation; an exponential equation; a
logarithmic equation; a differential equation, etc.
[1913 Webster]
3. (Astron.) A quantity to be applied in computing the mean
place or other element of a celestial body; that is, any
one of the several quantities to be added to, or taken
from, its position as calculated on the hypothesis of a
mean uniform motion, in order to find its true position as
resulting from its actual and unequal motion.
[1913 Webster]
Absolute equation. See under Absolute.
Equation box, or Equational box, a system of differential
gearing used in spinning machines for regulating the twist
of the yarn. It resembles gearing used in equation clocks
for showing apparent time.
Equation of the center (Astron.), the difference between
the place of a planet as supposed to move uniformly in a
circle, and its place as moving in an ellipse.
Equations of condition (Math.), equations formed for
deducing the true values of certain quantities from others
on which they depend, when different sets of the latter,
as given by observation, would yield different values of
the quantities sought, and the number of equations that
may be found is greater than the number of unknown
quantities.
Equation of a curve (Math.), an equation which expresses
the relation between the co["o]rdinates of every point in
the curve.
Equation of equinoxes (Astron.), the difference between the
mean and apparent places of the equinox.
Equation of payments (Arith.), the process of finding the
mean time of payment of several sums due at different
times.
Equation of time (Astron.), the difference between mean and
apparent time, or between the time of day indicated by the
sun, and that by a perfect clock going uniformly all the
year round.
Equation clock or Equation watch, a timepiece made to
exhibit the differences between mean solar and apparent
solar time. --Knight.
Normal equation. See under Normal.
Personal equation (Astron.), the difference between an
observed result and the true qualities or peculiarities in
the observer; particularly the difference, in an average
of a large number of observation, between the instant when
an observer notes a phenomenon, as the transit of a star,
and the assumed instant of its actual occurrence; or,
relatively, the difference between these instants as noted
by two observers. It is usually only a fraction of a
second; -- sometimes applied loosely to differences of
judgment or method occasioned by temperamental qualities
of individuals.
Theory of equations (Math.), the branch of algebra that
treats of the properties of a single algebraic equation of
any degree containing one unknown quantity.
[1913 Webster] |
Equinox
(gcide) | Equinox \E"qui*nox\, n. [OE. equinoxium, equenoxium, L.
aequinoctium; aequus equal + nox, noctis, night: cf. F.
['e]quinoxe. See Equal, and Night.]
1. The time when the sun enters one of the equinoctial
points, that is, about March 21 and September 22. See
Autumnal equinox, Vernal equinox, under Autumnal and
Vernal.
[1913 Webster]
When descends on the Atlantic
The gigantic
Stormwind of the equinox. --Longfellow.
[1913 Webster]
2. Equinoctial wind or storm. [R.] --Dryden.
[1913 Webster] |
march equinox
(gcide) | march equinox \march equinox\ n.
The vernal equinox.
[WordNet 1.5] |
Precession of the equinoxes
(gcide) | Precession \Pre*ces"sion\, n. [L. praecedere, praecessum, to go
before: cf. F. pr['e]cession. See Precede.]
The act of going before, or forward.
[1913 Webster]
Lunisolar precession. (Astron.) See under Lunisolar.
Planetary precession, that part of the precession of the
equinoxes which depends on the action of the planets
alone.
Precession of the equinoxes (Astron.), the slow backward
motion of the equinoctial points along the ecliptic, at
the rate of 50.2[sec] annually, caused by the action of
the sun, moon, and planets, upon the protuberant matter
about the earth's equator, in connection with its diurnal
rotation; -- so called because either equinox, owing to
its westerly motion, comes to the meridian sooner each day
than the point it would have occupied without the motion
of precession, and thus precedes that point continually
with reference to the time of transit and motion.
[1913 Webster] |
Vernal equinox
(gcide) | vernal \ver"nal\ (v[~e]r"nal), a. [L. vernalis, fr. vernus
vernal, ver spring; akin to Gr. 'e`ar, Skr. vasanta, Icel.
v[=a]r, and E. Easter, east.]
1. Of or pertaining to the spring; appearing in the spring;
as, vernal bloom.
[1913 Webster]
And purple all the ground with vernal flowers.
--Milton.
[1913 Webster]
2. Fig.: Belonging to youth, the spring of life.
[1913 Webster]
When after the long vernal day of life. --Thomson.
[1913 Webster]
And seems it hard thy vernal years
Few vernal joys can show? --Keble.
[1913 Webster]
[1913 Webster]
Vernal equinox (Astron.), the point of time in each year
when the sun crosses the equator when proceeding
northward, about March 21, when day and night are of
approximately equal duration. The beginning of the Spring
season.
Vernal grass (Bot.), a low, soft grass ({Anthoxanthum
odoratum}), producing in the spring narrow spikelike
panicles, and noted for the delicious fragrance which it
gives to new-mown hay; -- also called {sweet vernal
grass}. See Illust. in Appendix.
Vernal signs (Astron.), the signs, Aries, Taurus, and
Gemini, in which the sun appears between the vernal
equinox and summer solstice.
[1913 Webster] |
autumnal equinox
(wn) | autumnal equinox
n 1: September 22 [syn: autumnal equinox, September equinox,
fall equinox] [ant: March equinox, spring equinox,
vernal equinox]
2: (astronomy) the equinoctial point that lies in the
constellation of Virgo |
fall equinox
(wn) | fall equinox
n 1: September 22 [syn: autumnal equinox, September equinox,
fall equinox] [ant: March equinox, spring equinox,
vernal equinox] |
march equinox
(wn) | March equinox
n 1: March 21 [syn: vernal equinox, March equinox, {spring
equinox}] [ant: September equinox, autumnal equinox,
fall equinox] |
precession of the equinoxes
(wn) | precession of the equinoxes
n 1: a slow westward shift of the equinoxes along the plane of
the ecliptic caused by precession of the Earth's axis of
rotation |
september equinox
(wn) | September equinox
n 1: September 22 [syn: autumnal equinox, September equinox,
fall equinox] [ant: March equinox, spring equinox,
vernal equinox] |
spring equinox
(wn) | spring equinox
n 1: March 21 [syn: vernal equinox, March equinox, {spring
equinox}] [ant: September equinox, autumnal equinox,
fall equinox] |
vernal equinox
(wn) | vernal equinox
n 1: March 21 [syn: vernal equinox, March equinox, {spring
equinox}] [ant: September equinox, autumnal equinox,
fall equinox]
2: (astronomy) the equinoctial point that lies in the
constellation of Pisces |
|