Try Our Apps


The Best Internet Slang


[loo-kuh-trahy-een] /ˌlu kəˈtraɪ in/
noun, Biochemistry.
a lipid, C 20 H 30 O 3 , produced by white blood cells in an immune response to antigens, that contributes to allergic asthma and inflammatory reactions.
Origin of leukotriene
First recorded in 1975-80; leuko- + triene Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
Cite This Source
British Dictionary definitions for leukotriene


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
Word Origin
C20: from leukocyte, in which they were discovered + triene from the conjugated triene unit that they contain
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
Cite This Source
leukotriene in Medicine

leukotriene leu·ko·tri·ene (lōō'kə-trī'ēn')
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.
Cite This Source

Word of the Day

Difficulty index for leukotriene

Few English speakers likely know this word

Word Value for leukotriene

Scrabble Words With Friends

Nearby words for leukotriene