planetoid

[ plan-i-toid ]
/ ˈplæn ɪˌtɔɪd /

noun Astronomy.

an asteroid.

Nearby words

  1. planetary,
  2. planetary nebula,
  3. planetary precession,
  4. planetesimal,
  5. planetesimal hypothesis,
  6. planetology,
  7. planform,
  8. plangent,
  9. plangently,
  10. planh

Origin of planetoid

First recorded in 1795–1805; planet + -oid

Related formsplan·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 Formsplanetoidal, 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.