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planet
[ plan-it ]
noun
- Astronomy.
- Also called major planet. any of the eight large heavenly bodies revolving about the sun and shining by reflected light: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, or Neptune, in the order of their proximity to the sun. Until 2006, Pluto was classified as a planet ninth in order from the sun; it has been reclassified as a dwarf planet.
- a similar body revolving about a star other than the sun.
- (formerly) a celestial body moving in the sky, as distinguished from a fixed star, applied also to the sun and moon.
- Astrology. the sun, moon, Mercury, Venus, Mars, Jupiter, Saturn, Uranus, Neptune, or Pluto: considered sources of energy or consciousness in the interpretation of horoscopes.
planet
/ ˈplænɪt /
noun
- Also calledmajor planet any of the eight celestial bodies, Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune, that revolve around the sun in elliptical orbits and are illuminated by light from the sun
- Also calledextrasolar planet any other celestial body revolving around a star, illuminated by light from that star
- astrology any of the planets of the solar system, excluding the earth but including the sun and moon, each thought to rule one or sometimes two signs of the zodiac See also house
planet
/ plăn′ĭt /
- In the traditional model of solar systems, a celestial body larger than an asteroid or comet, illuminated by light from a star, such as the Sun, around which it revolves.
- A celestial body that orbits the Sun, has sufficient mass to assume nearly a round shape, clears out dust and debris from the neighborhood around its orbit, and is not a satellite of another planet. The eight planets are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. Pluto was considered to be a planet until its reclassification in 2006 as a dwarf planet. A planetlike body with more than about ten times the mass of Jupiter would be considered a brown dwarf rather than a planet.
- See also extrasolar planet
Notes
Word History and Origins
Origin of planet1
Word History and Origins
Origin of planet1
Example Sentences
A new analysis of meteorites from the inner solar system — home to the four rocky planets — suggests that Earth’s building blocks delivered enough water to account for all the H2O buried within the planet.
For the first time, astronomers have captured a portrait of a distant family of planets and their sunlike star.
A team of researchers led by David Armstrong at the University of Warwick in the UK recently trained a machine-learning algorithm to identify “exoplanets”—that is, planets outside our solar system—from NASA data.
Most young people I know have already decided not to have children, because they don’t want their kids growing up on a doomed planet.
The solar system is the group of planets, including Earth, that orbit the sun.
Andy Serkis, Dawn of the Planet of the Apes Do you want to be on the wrong side of history, Academy?
In fact, Mexico buys and sells more US goods than any other country on the planet except for Canada.
Good for her—but what a shameful indictment of Planet Fashion.
With Batman and Planet of the Apes, you seem to be operating around 15 years ahead of the culture.
Why was a master photographer recruited to work with one of the most successful liquor brands on the planet?
Reckoning that Neptune is the outermost planet of the solar system, that system would have a diameter of 5,584 millions of miles.
Cassini observed, by the position of certain spots, the revolution of the planet Venus on its axis.
Meadows began to play inner planet combinations that occasionally paid, though at short odds.
Our poor planet will be but a silent ghost whirling on its dark path in the starlight.
As the details of this planet are to occupy us during nearly all the remainder of this work, we shall for the present pass it by.
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