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单词 periodic comet
释义

Definition of periodic comet in English:

periodic comet

noun
Astronomy
  • A comet with an observably elliptical orbit, especially one that brings it into the inner solar system at regular intervals.

Origin

Mid 19th century.

Definition of periodic comet in US English:

periodic comet

noun
Astronomy
  • A comet with an observably elliptical orbit, especially one that brings it into the inner solar system at regular intervals.

Origin

Mid 19th century.

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更新时间:2024/9/21 11:29:28