eicosanoid

From Ancient Greek εἴκοσι (eíkosi, “twenty”) +‎ -ane (“an alkane”) +‎ -oic (“a carboxylic acid”) +‎ -oid (“-like”).

• (General American) IPA^(key): /aɪˈkoʊ.səˌnɔɪd/

eicosanoid (plural eicosanoids)

1. (organic chemistry) Any of a family of naturally-occurring substances derived from 20-carbon polyunsaturated fatty acids; they include the prostaglandins, thromboxanes, leukotrienes and epoxyeicosatrienoic acids; they function as hormones.

• icosanoid

• “eicosanoid”, in Merriam-Webster Online Dictionary, Springfield, Mass.: Merriam-Webster, 1996–present.