Dictionary.com

-oid

a suffix meaning “resembling,” “like,” used in the formation of adjectives and nouns (and often implying an incomplete or imperfect resemblance to what is indicated by the preceding element): alkaloid; anthropoid; cardioid; cuboid; lithoid; ovoid; planetoid.

QUIZZES

LEARN THE SPANISH WORDS FOR THESE COMMON ANIMALS!

Are you learning Spanish? Or do you just have an interest in foreign languages? Either way, this quiz on Spanish words for animals is for you.
Question 1 of 13
How do you say “cat” 🐈 in Spanish?
gato/gata
cato/cata
gatto/gatta
TAKE THE QUIZ TO FIND OUT
Compare -ode1.

Origin of -oid

<Greek -oeidēs, equivalent to -o--o- + -eidēs having the form of, derivative of eîdos form

Words nearby -oid

Ohrmazd, “Oh! Susanna”, ohv, Oi, OIC, -oid, -oidea, oidiomycin, oidium, oik, oil
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

British Dictionary definitions for -oid

-oid

suffix forming adjectives, suffix forming nouns

indicating likeness, resemblance, or similarityanthropoid

Word Origin for -oid

from Greek -oeidēs resembling, form of, from eidos form
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

Medical definitions for -oid

-oid

suff.

Resembling; one that resembles:cancroid.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Scientific definitions for -oid

-oid

A suffix meaning “like” or “resembling,” as in ellipsoid, a geometric solid that resembles an ellipse.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.