Dictionary

planetoid

noun plan·et·oid \ˈpla-nə-ˌtid\

Definition of PLANETOID

:  a small body resembling a planet; especially :  asteroid
plan·et·oi·dal \ˌpla-nə-ˈti-dəl\ adjective

First Known Use of PLANETOID

1803

Browse

Next Word in the Dictionary: planetologyPrevious Word in the Dictionary: planetesimal hypothesisAll Words Near: planetoid
May 22, 2015
nepotism Hear it
favoritism based on kinship
Take a 3-minute break and test your skills!
How to use a word that (literally) drives some people nuts.
Test your vocab with our fun, fast game
Ailurophobia, and 9 other unusual fears