asteroid
asteroid 英 [ˈæstərɔɪd] 美 [ˈæstəˌrɔɪd]
n. [天] 小行星；[无脊椎] 海盘车；小游星 adj. 星状的
名词复数:asteroids
- An asteroid is a large, irregularly shaped object in space that orbits our Sun. If one of these giant rocks ends up on a collision course with Earth, we are in for big trouble.
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- n. [天] 小行星；[无脊椎] 海盘车；小游星
- adj. 星状的
- asteroid (n.) "one of the planetoids orbiting the sun, found mostly between Mars and Jupiter," 1802, coined probably by German-born English astronomer William Herschel (1738-1822) from Greek asteroeides "star-like," from aster "star" (from PIE root *ster- (2) "star") + -eidos "form, shape" (see -oid). Related: Asteroidal.
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