| slovo | definícia |
Diurnal aberration
(gcide) | Diurnal \Di*ur"nal\, a. [L. diurnalis, fr. dies day. See
Deity, and cf. Journal.]
1. Relating to the daytime; belonging to the period of
daylight, distinguished from the night; -- opposed to
nocturnal; as, diurnal heat; diurnal hours.
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2. Daily; recurring every day; performed in a day; going
through its changes in a day; constituting the measure of
a day; as, a diurnal fever; a diurnal task; diurnal
aberration, or diurnal parallax; the diurnal revolution of
the earth.
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Ere twice the horses of the sun shall bring
Their fiery torcher his diurnal ring. --Shak.
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3. (Bot.) Opening during the day, and closing at night; --
said of flowers or leaves.
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4. (Zool.) Active by day; -- applied especially to the eagles
and hawks among raptorial birds, and to butterflies
(Diurna) among insects.
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Diurnal aberration (Anat.), the aberration of light arising
from the effect of the earth's rotation upon the apparent
direction of motion of light.
Diurnal arc, the arc described by the sun during the
daytime or while above the horizon; hence, the arc
described by the moon or a star from rising to setting.
Diurnal circle, the apparent circle described by a
celestial body in consequence of the earth's rotation.
Diurnal motion of the earth, the motion of the earth upon
its axis which is described in twenty-four hours.
Diurnal motion of a heavenly body, that apparent motion of
the heavenly body which is due to the earth's diurnal
motion.
Diurnal parallax. See under Parallax.
Diurnal revolution of a planet, the motion of the planet
upon its own axis which constitutes one complete
revolution.
Syn: See Daily.
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diurnal aberration
(gcide) | Aberration \Ab`er*ra"tion\, n. [L. aberratio: cf. F. aberration.
See Aberrate.]
1. The act of wandering; deviation, especially from truth or
moral rectitude, from the natural state, or from a type.
"The aberration of youth." --Hall. "Aberrations from
theory." --Burke.
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2. A partial alienation of reason. "Occasional aberrations of
intellect." --Lingard.
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Whims, which at first are the aberrations of a
single brain, pass with heat into epidemic form.
--I. Taylor.
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3. (Astron.) A small periodical change of position in the
stars and other heavenly bodies, due to the combined
effect of the motion of light and the motion of the
observer; called annual aberration, when the observer's
motion is that of the earth in its orbit, and daily or
diurnal aberration, when of the earth on its axis;
amounting when greatest, in the former case, to 20.4'',
and in the latter, to 0.3''. Planetary aberration is
that due to the motion of light and the motion of the
planet relative to the earth.
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4. (Opt.) The convergence to different foci, by a lens or
mirror, of rays of light emanating from one and the same
point, or the deviation of such rays from a single focus;
called spherical aberration, when due to the spherical
form of the lens or mirror, such form giving different
foci for central and marginal rays; and {chromatic
aberration}, when due to different refrangibilities of the
colored rays of the spectrum, those of each color having a
distinct focus.
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5. (Physiol.) The passage of blood or other fluid into parts
not appropriate for it.
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6. (Law) The producing of an unintended effect by the
glancing of an instrument, as when a shot intended for A
glances and strikes B.
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Syn: Insanity; lunacy; madness; derangement; alienation;
mania; dementia; hallucination; illusion; delusion. See
Insanity.
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| | podobné slovo | definícia |
Diurnal aberration
(gcide) | Diurnal \Di*ur"nal\, a. [L. diurnalis, fr. dies day. See
Deity, and cf. Journal.]
1. Relating to the daytime; belonging to the period of
daylight, distinguished from the night; -- opposed to
nocturnal; as, diurnal heat; diurnal hours.
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2. Daily; recurring every day; performed in a day; going
through its changes in a day; constituting the measure of
a day; as, a diurnal fever; a diurnal task; diurnal
aberration, or diurnal parallax; the diurnal revolution of
the earth.
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Ere twice the horses of the sun shall bring
Their fiery torcher his diurnal ring. --Shak.
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3. (Bot.) Opening during the day, and closing at night; --
said of flowers or leaves.
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4. (Zool.) Active by day; -- applied especially to the eagles
and hawks among raptorial birds, and to butterflies
(Diurna) among insects.
[1913 Webster]
Diurnal aberration (Anat.), the aberration of light arising
from the effect of the earth's rotation upon the apparent
direction of motion of light.
Diurnal arc, the arc described by the sun during the
daytime or while above the horizon; hence, the arc
described by the moon or a star from rising to setting.
Diurnal circle, the apparent circle described by a
celestial body in consequence of the earth's rotation.
Diurnal motion of the earth, the motion of the earth upon
its axis which is described in twenty-four hours.
Diurnal motion of a heavenly body, that apparent motion of
the heavenly body which is due to the earth's diurnal
motion.
Diurnal parallax. See under Parallax.
Diurnal revolution of a planet, the motion of the planet
upon its own axis which constitutes one complete
revolution.
Syn: See Daily.
[1913 Webster]Aberration \Ab`er*ra"tion\, n. [L. aberratio: cf. F. aberration.
See Aberrate.]
1. The act of wandering; deviation, especially from truth or
moral rectitude, from the natural state, or from a type.
"The aberration of youth." --Hall. "Aberrations from
theory." --Burke.
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2. A partial alienation of reason. "Occasional aberrations of
intellect." --Lingard.
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Whims, which at first are the aberrations of a
single brain, pass with heat into epidemic form.
--I. Taylor.
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3. (Astron.) A small periodical change of position in the
stars and other heavenly bodies, due to the combined
effect of the motion of light and the motion of the
observer; called annual aberration, when the observer's
motion is that of the earth in its orbit, and daily or
diurnal aberration, when of the earth on its axis;
amounting when greatest, in the former case, to 20.4'',
and in the latter, to 0.3''. Planetary aberration is
that due to the motion of light and the motion of the
planet relative to the earth.
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4. (Opt.) The convergence to different foci, by a lens or
mirror, of rays of light emanating from one and the same
point, or the deviation of such rays from a single focus;
called spherical aberration, when due to the spherical
form of the lens or mirror, such form giving different
foci for central and marginal rays; and {chromatic
aberration}, when due to different refrangibilities of the
colored rays of the spectrum, those of each color having a
distinct focus.
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5. (Physiol.) The passage of blood or other fluid into parts
not appropriate for it.
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6. (Law) The producing of an unintended effect by the
glancing of an instrument, as when a shot intended for A
glances and strikes B.
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Syn: Insanity; lunacy; madness; derangement; alienation;
mania; dementia; hallucination; illusion; delusion. See
Insanity.
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