a combining form meaning “outside,” “outer,” “external,” used in the formation of compound words: exocentric.
- Also ex-.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use exo- in a sentence
“I started Exo with the mission to normalize consumption of bugs” says Gabi Lewis, co-founder of Exo Protein.
Nearly two years later, Exo Protein has sold hundreds of thousands of bars.
In either instance the hardened integument constitutes what is known as the exo-skeleton.The Sea Shore | William S. Furneaux
She ran off to her typewriter, and in twelve minutes came back with the jingle, I'm glad I'm not an Exo.Facts in Jingles | Winifred Sackville Stoner
British Dictionary definitions for exo (1 of 2)
Australian an informal word for excellent
British Dictionary definitions for exo- (2 of 2)
external, outside, or beyond: exobiology; exothermal
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
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.