a combining form meaning “outside,” “outer,” “external,” used in the formation of compound words: exocentric.
QUIZ YOURSELF ON "WAS" VS. "WERE"!
Were you ready for a quiz on this topic? Well, here it is! See how well you can differentiate between the uses of "was" vs. "were" in this quiz.
Question 1 of 7
“Was” is used for the indicative past tense of “to be,” and “were” is only used for the subjunctive past tense.
Origin of exo-
<Greek, combining form of éxō outside
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022
How to use exo- in a sentence
British Dictionary definitions for exo- (1 of 2)
British Dictionary definitions for exo- (2 of 2)
external, outside, or beyondexobiology; exothermal
Word Origin for exo-
from Greek exō outside
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Medical definitions for exo-
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Scientific definitions for exo-
A prefix that means outside or external, as in exoskeleton.
The American Heritage® Science Dictionary
Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.