autacoidal

au·ta·coid

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

Origin:
1910–15; aut- + Greek ák(os) remedy + -oid

au·ta·coi·dal, adjective
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World English Dictionary
autacoid (ˈɔːtəˌkɔɪd) [Click for IPA pronunciation guide]
 
n
physiol any natural internal secretion, esp one that exerts an effect similar to a drug
 
[C20: from auto- + Greek akos cure + -oid]

Collins English Dictionary - Complete & Unabridged 10th Edition
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00:10
Autacoidal is always a great word to know.
So is zedonk. Does it mean:
an extraordinary or unusual thing, person, or event; an exceptional example or instance.
the offspring of a zebra and a donkey.
American Heritage
Medical Dictionary

autacoid au·ta·coid or au·to·coid (ô'tə-koid')
n.
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.

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