planetesimal

名词 n. 形容词 adj.
中文释义

英文释义

名词 n.
  1. Any of many small, solid astronomical objects that orbit a star and form protoplanets through mutual gravitational attraction.
形容词 adj.
  1. Being or relating to one of these astronomical objects. not-comparable
    — a planetesimal body

词形变化

planetesimals plural

词源

词源 1
Formed from planet by analogy with infinitesimal.
词源 2
Formed from planet by analogy with infinitesimal.
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