planetoid

[ plan-i-toid ]
/ ˈplæn ɪˌtɔɪd /

noun Astronomy.

an asteroid.

Origin of planetoid

First recorded in 1795–1805; planet + -oid

Related forms

plan·et·oi·dal, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for planetoid

British Dictionary definitions for planetoid

planetoid

/ (ˈplænɪˌtɔɪd) /

noun

another name for asteroid (def. 1)

Derived Forms

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

Science definitions for planetoid

planetoid

[ plănĭ-toid′ ]

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