leukotriene

[loo-kuh-trahy-een]

leu·ko·tri·ene

[loo-kuh-trahy-een]
noun Biochemistry.
a lipid, C20H30O3, produced by white blood cells in an immune response to antigens, that contributes to allergic asthma and inflammatory reactions.

Origin:
1975–80; leuko- + triene
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Leukotriene is always a great word to know.
So is hafnium. Does it mean:
Symbol: Hf; atomic weight: 179.49; atomic number: 72
Symbol: Sm; atomic weight: 150.35; atomic number: 62
Collins
World English Dictionary
leukotriene (ˌluːkəʊˈtraɪiːn)
 
n
one of a class of products of metabolic conversion of arachidonic acid; the active constituents of slow-reacting substance, responsible for bronchial constriction, contraction of smooth muscle, and inflammatory processes
 
[C20: from leukocyte, in which they were discovered + triene from the conjugated triene unit that they contain]

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Medical Dictionary

leukotriene leu·ko·tri·ene (l&oomacr;'kə-trī'ēn')
n.
Any of a group of physiologically active substances that possibly function as mediators of inflammation and as participants in allergic responses.

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