Associations to the word «Planet»

PLANET, noun. (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. [from 14thc.]

PLANET, 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.) [from 17thc.]

PLANET, noun. A large body which directly orbits any star (or star cluster) but which has not attained nuclear fusion.

PLANET, noun. In phrases such as the planet, this planet, sometimes refers to the Earth.

PLANET THANET, proper noun. (UK) (slang) The Isle of Thanet.

PLANET WHEEL, noun. A gear wheel that revolves around the wheel with which it meshes, in an epicyclic train.

PLANET WHEELS, noun. Plural of planet wheel

PLANET X, proper noun. (astronomy) A hypothetical planet in our solar system. (Generally considered the next planet beyond the currently known outermost planet.)

PLANET X, proper noun. (astronomy) (obsolete) A theoretical planet that gravitationally perturbs the orbit of Neptune. (This was incorrectly applied to Pluto. Later it became another planet further out to account for the missing mass that Pluto did not provide.)

PLANET X, proper noun. (astronomy) (obsolete) A theoretical planet that gravitationally perturbs the orbit of Uranus. (This became Neptune.)

PLANET X, proper noun. (astronomy) (obsolete) A hypothetical tenth planet, beyond Pluto (Pluto was demoted to minor planet status as a dwarf planet, so there are only eight planets. It had been applied to Eris for a short while.)

PLANET, 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.

PLANET, noun. A person who follows or serves another.

PLANET, noun. Any celestial body (other than comets or satellites) that revolves around a star.