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hemo-

  1. a combining form meaning “blood,” used in the formation of compound words: hemocyte.
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Also hema-, hemato-; especially before a vowel, hem-; especially British, haemo-.

Origin of hemo-

< New Latin, combining form representing Greek haîma blood
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for hemo-

hemo-

combining form
  1. a US variant of haemo-
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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

Word Origin and History for hemo-

word-forming element meaning "blood," perhaps via Old French hemo-, Latin haemo-, from Greek haimo-, from haima "blood" (see -emia).

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Online Etymology Dictionary, © 2010 Douglas Harper

hemo- in Medicine

hemo-

pref.
  1. Blood:hemocyte.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

hemo- in Science

hemo-

  1. A prefix meaning “blood,” as in hemophilia, a disorder in which blood fails to clot, or hematology, the scientific study of blood.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.