Planet (noun)
Etymology:
Meaning:
A celestial body that orbits a star, is massive enough to be rounded by its own gravity, but is not massive enough to cause nuclear fusion.
Origin:
The term "planet" was first used by ancient Greek astronomers to describe the celestial bodies that moved about the heavens in a regular fashion, in contrast to the fixed stars. The planets known to the ancient Greeks were Mercury, Venus, Mars, Jupiter, and Saturn. The term "planet" eventually came to refer to any celestial body that orbits a star, regardless of its size or composition.
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Planet noun Etymology From Middle English planete derived from Old English planēta
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Planet noun Etymology From Middle English planete derived from Old English planēta
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