Lexic.us

Definition of Planet

1. Noun. (astronomy) any of the nine large celestial bodies in the solar system that revolve around the sun and shine by reflected light; Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, and Pluto in order of their proximity to the sun; viewed from the constellation Hercules, all the planets rotate around the sun in a counterclockwise direction.

2. Noun. A person who follows or serves another.

3. Noun. Any celestial body (other than comets or satellites) that revolves around a star.

Definition of Planet

1. n. A celestial body which revolves about the sun in an orbit of a moderate degree of eccentricity. It is distinguished from a comet by the absence of a coma, and by having a less eccentric orbit. See Solar system.

Definition of Planet

1. Noun. (context: now historical or astrology) Each of the seven major bodies which move relative to the fixed stars in the night sky—the Moon, Mercury, Venus, the Sun, Mars, Jupiter and Saturn. (defdate from 14th c.) ¹

2. Noun. (astronomy) A body which orbits the Sun directly and is massive enough to be in hydrostatic equilibrium (effectively meaning a spheroid) and to dominate its orbit; specifically, the eight major bodies of Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. (Pluto was considered a planet until 2006 and has now been reclassified as a dwarf planet.) (defdate from 17th c.) ¹

3. Noun. A large body which directly orbits any star (or star cluster) but which has not attained nuclear fusion. ¹

¹ Source: wiktionary.com

Definition of Planet

1. a celestial body [n -S]

Medical Definition of Planet

1. 1. A celestial body which revolves about the sun in an orbit of a moderate degree of eccentricity. It is distinguished from a comet by the absence of a coma, and by having a less eccentric orbit. See Solar system. The term planet was first used to distinguish those stars which have an apparent motion through the constellations from the fixed stars, which retain their relative places unchanged. The inferior planets are Mercury and Venus, which are nearer to the sun than is the earth; the superior planets are Mars, the asteroids, Jupiter, Saturn, Uranus, and Neptune, which are farther from the sun than is the earth. Primary planets are those which revolve about the sun; secondary planets, or moons, are those which revolve around the primary planets as satellites, and at the same time revolve with them about the sun. 2. A star, as influencing the fate of a men. "There's some ill planet reigns." (Shak) Planet gear. See Epicyclic train, under Epicyclic. Planet wheel, a gear wheel which revolves around the wheel with which it meshes, in an epicyclic train. Origin: OE. Planete, F. Planete, L. Planeta, fr. Gr, and a planet; prop. Wandering, fr. To wander, fr. A wandering. Source: Websters Dictionary (01 Mar 1998)

Lexicographical Neighbors of Planet

planenesses planer planer tree planer trees planerite planers planes planes of reference planesful planeside

planesides planespotter planespotters planespotting planest planet gear planet wheel planetal planetaria planetarian

planetaries planetarily planetarium planetariums planetary planetary body planetary gear planetary gear train planetary house

Literary usage of Planet

Below you will find example usage of this term as found in modern and/or classical literature:

1. The Popular Science MonthlyScience (1893)
"Recent observations of the planet Venus (Misc.), в : 760. Ringed planet [Saturn] (16 p., 2 il. ... Surface characters of the planet Mars (4 p.), 24 : 249. ..."

2. Encyclopaedia Britannica, a Dictionary of Arts, Sciences, Literature and edited by Hugh Chisholm (1910)
"Now, consider the values of these same variables expressing the position of the planet at a second point Q, and the speed with which it passes that point. ..."

3. A Manual of Spherical and Practical Astronomy: Embracing the General by William Chauvenet (1863)
"It represents an ellipse whose axes are 2s and 2s j/(l — cc cos2,}), e being the eccentricity of the planet's meridians. The minor axis (OB, Fig. ..."

4. Scientific Papers by George Howard Darwin, Francis Darwin, Ernest William Brown (1908)
"SUPPOSE an attractive particle or satellite of mass m to be moving in a circular orbit, with an angular velocity fi, round a planet of mass M, ..."

5. Proceedings of the Cambridge Philosophical Society by Cambridge Philosophical Society (1892)
"(2) On the perturbation of a comet in the neighbourhood of a planet. By GH DARWIN, FRS, Plumian Professor and Fellow of Trinity College. ..."

6. The Popular Science MonthlyScience (1893)
"Recent observations of the planet Venus (Misc.), в : 760. Ringed planet [Saturn] (16 p., 2 il. ... Surface characters of the planet Mars (4 p.), 24 : 249. ..."

7. Encyclopaedia Britannica, a Dictionary of Arts, Sciences, Literature and edited by Hugh Chisholm (1910)
"Now, consider the values of these same variables expressing the position of the planet at a second point Q, and the speed with which it passes that point. ..."

8. A Manual of Spherical and Practical Astronomy: Embracing the General by William Chauvenet (1863)
"It represents an ellipse whose axes are 2s and 2s j/(l — cc cos2,}), e being the eccentricity of the planet's meridians. The minor axis (OB, Fig. ..."

9. Scientific Papers by George Howard Darwin, Francis Darwin, Ernest William Brown (1908)
"SUPPOSE an attractive particle or satellite of mass m to be moving in a circular orbit, with an angular velocity fi, round a planet of mass M, ..."

10. Proceedings of the Cambridge Philosophical Society by Cambridge Philosophical Society (1892)
"(2) On the perturbation of a comet in the neighbourhood of a planet. By GH DARWIN, FRS, Plumian Professor and Fellow of Trinity College. ..."

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