Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. Any of several lipid compounds that contain 20 carbon atoms, are related to prostaglandins, and mediate the inflammatory response.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. Any of several physiologically active lipids, related to the prostaglandins, that participate in allergic responses

Etymologies

leuko(cyte) + triene, a compound containing three double bonds (tri- + -ene).
(American Heritage® Dictionary of the English Language, Fourth Edition)

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