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planetoid

[plan-i-toid]
See more synonyms for planetoid on Thesaurus.com
noun Astronomy.
  1. an asteroid.
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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. 2018

Related Words

sphere, earth, globe, world, asteroid, satellite, pumpkin, crescent, half-moon, planetoid, marble, orb, apple, moon, terrene

Examples from the Web for planetoid

Contemporary Examples

Historical Examples

  • The crops continued to grow on the tamed black dirt of the planetoid.

    Beside Still Waters

    Robert Sheckley

  • I had every executive on the planetoid jumping before I was through.

    A Spaceship Named McGuire

    Gordon Randall Garrett

  • The next three levels have all been burned into the bowels of the planetoid.

    The Risk Profession

    Donald Edwin Westlake

  • Then he nudged the Nancy Bell sideways, pushing the bolt down into the planetoid.

    Anchorite

    Randall Garrett

  • The tugs would be able to find the planetoid by following the beeps.

    Anchorite

    Randall Garrett

British Dictionary definitions for planetoid

planetoid

noun
  1. another name for asteroid (def. 1)
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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
planetoid in Science

planetoid

[plăn′ĭ-toid′]
  1. See asteroid.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.