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endo-

1.
a combining form meaning “within,” used in the formation of compound words:
endocardial.
Also, especially before a vowel, end-.
Origin
< Greek, combining form of éndon within; cognate with Old Irish ind-, OL endo- in, on
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for endo
  • What is the difference between an endo and exothermic reaction.
British Dictionary definitions for endo

endo-

combining form
1.
inside; within: endocrine
Word Origin
from Greek, from endon within
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Word Origin and History for endo

endo-

word-forming element meaning "inside, within, internal," comb. form of Greek endon "in, within," literally "in the house of," from en "in" (see en- (2)) + base of domos "house" (see domestic).

Online Etymology Dictionary, © 2010 Douglas Harper
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endo in Medicine

endo- or end-
pref.
Inside; within: endometrium.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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endo in Science
endo-  
A prefix meaning "inside," as in endoskeleton.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Related Abbreviations for endo

endo

endocrine

ENDO

endometriosis
The American Heritage® Abbreviations Dictionary, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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