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exo-

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exo-

 
Use exo- in a Sentence
a combining form meaning “outside,” “outer,” “external,” used in the formation of compound words: exocentric.
Also, ex-.

Origin:
< Gk, comb. form of éxō outside
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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exo-  
pref.  Outside; external: exoskeleton.

[From Greek exō, outside, from ex, out of; see eghs in Indo-European roots.]
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Word Origin & History

exo- 
comb. form of Gk. exo "outside," used in forming scientific words, e.g. exoskeleton, introduced by Eng. anatomist Sir Richard Owen (1804-92).
Online Etymology Dictionary, © 2001 Douglas Harper
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Medical Dictionary

exo- pref.
Outside; external: exoskeleton.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Science Dictionary
exo-  
A prefix that means "outside" or "external," as in exoskeleton.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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