Meaning

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

Frequency

C1
Pronounced as (IPA)
/ˈæst(ə)ɹɔɪd/
Etymology

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

Notes

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