asteroid

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n. 小行星, 海盘车 a. 星状的

发音

US /ˈæst(ə)ɹɔɪd/

词形变化

asteroids 复数

释义与例句

n.
  1. 1.

    A naturally occurring solid object, which is smaller than a planet and a dwarf planet, larger than a meteoroid and not a comet, that orbits a star and often has an irregular shape.

    小行星

    天文
  2. 2.

    In the Solar System, such a body that orbits within the orbit of Jupiter.

    天文
  3. 1.

    Any member of the taxonomic class Asteroidea; a starfish.

    生物 动物学

词汇关系

名词

上位词 2

minor planet planetoid

相关短语

asteroid belt 小行星带 asteroid belts Asteroid Belt main asteroid belt Main Asteroid Belt Trojan asteroid Vatira asteroid Atira asteroid Apohele asteroid ꞌAylóꞌchaxnim asteroid binary asteroid Aten asteroid

词源

From aster + -oid, lit. "star-like". Coined by William Herschel.

来源：wiktionary