planetoid

[ plan-i-toid ]

See synonyms for planetoid on Thesaurus.com

nounAstronomy.

asteroid (def. 1).

Origin of planetoid

First recorded in 1795–1805; planet + -oid

Other words from planetoid

plan·et·oi·dal, adjective

See also small solar system body.

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024

British Dictionary definitions for planetoid

planetoid

/ (ˈplænɪˌtɔɪd) /

noun

another name for asteroid (def. 1)

Derived forms of planetoid

planetoidal, adjective

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Scientific definitions for planetoid

planetoid

[ plăn′ĭ-toid′ ]

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