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planetoid

[ plan-i-toid ]
/ ˈplæn ɪˌtɔɪd /
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See synonyms for planetoid on Thesaurus.com

noun Astronomy.

asteroid (def. 1).

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See also small solar system body.

Origin of planetoid

First recorded in 1795–1805; planet + -oid

OTHER WORDS FROM planetoid

plan·et·oi·dal, adjective

Words nearby planetoid

planetary nebula, planetary precession, planetesimal, planetesimal hypothesis, planet gear, planetoid, planetology, plane tree, plane trigonometry, planet-struck, planet wheel
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

Words related to planetoid

sphere, earth, globe, world, asteroid, satellite, pumpkin, crescent, half-moon, marble, orb, apple, moon, celestial body, full moon, new moon, old moon, terrene

Example sentences from the Web for planetoid

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′ ]

See asteroid.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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