vulcanoid

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English[edit]

English Wikipedia has an article on:
Wikipedia

Etymology[edit]

Vulcan +‎ -oid, from the hypothetical planet Vulcan, erroneously believed to exist within the orbit of Mercury.

Noun[edit]

vulcanoid (plural vulcanoids)

  1. (astronomy) A member of the hypothetical population of small asteroids orbiting in the dynamically stable zone between 0.08 and 0.21 AU from the Sun

Adjective[edit]

vulcanoid (not comparable)

  1. (astronomy) Of or pertaining to a vulcanoid.
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