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autacoid

[aw-tuh-koid]
noun Physiology.
  1. any physiologically active internal secretion, especially one of uncertain classification, as histamine or prostaglandin.
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Origin of autacoid

1910–15; aut- + Greek ák(os) remedy + -oid
Related formsau·ta·coi·dal, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for autacoid

autacoid

noun
  1. physiol any natural internal secretion, esp one that exerts an effect similar to a drug
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Word Origin for autacoid

C20: from auto- + Greek akos cure + -oid
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
autacoid in Medicine

autacoid

n.
  1. An organic substance, such as a hormone, produced in one part of an organism and transported by the blood or lymph to another part of the organism where it exerts a physiologic effect on that part.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.