planetoid

[plan-i-toid]

See more synonyms for planetoid on Thesaurus.com

noun Astronomy.

an asteroid.

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

Examples from the Web for planetoid

Contemporary Examples

Your may-be ruler Mercury teams with loving Venus, Monday, squaring Neptune and Chiron, the planetoid of healing.
Horoscopes for June 5-11, 2011
Starsky + Cox
June 4, 2011

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

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

planetoid in Science