eicosanoid

[ī-kō′sə-noid′]

n.

Any of the physiologically active substances derived from arachidonic acid, including the prostaglandins, leukotrienes, and thromboxanes.

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