名詞 asteroid:

1. any of numerous small celestial bodies composed of rock and metal that move around the sun (mainly between the orbits of Mars and Jupiter)

形容詞 asteroid:

1. shaped like a star
   同義詞：star-shaped

as.ter.oid

n.（名詞）
Astronomy Any of numerous small celestial bodies that revolve around the sun, with orbits lying chiefly between Mars and Jupiter and characteristic diameters between a few and several hundred kilometers.Also called minor planet ,planetoid
【天文學(xué)】 小行星：一種圍繞太陽旋轉(zhuǎn)的小型天體，其運行軌道多集中在火星和木星的軌道之間，特征是直徑為幾公里至幾百公里也作 minor planet,planetoid
Zoology See starfish
【動物學(xué)】 參見 starfish
adj.also （形容詞） 也作
asteroidal
Star-shaped.
星狀的

來源：
Greek asteroeidôs [starlike]
希臘語 asteroeidôs [星星似的]
astôr [star] * see ster- 3
astôr [星星] *參見 ster- 3
-oeidôs [-oid]
-oeidôs [后綴，表示.如…的.]