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