Either of two related enzymes that control the production of prostaglandins and are blocked by aspirin

WordNet Word definitions in WordNet
n. either of two related enzymes that control the production of prostaglandins and are blocked by aspirin [syn: Cox ]

Wikipedia Word definitions in Wikipedia
Cyclooxygenase ( COX ), officially known as prostaglandin-endoperoxide synthase ( PTGS ), is an enzyme (specifically, a family of isozymes , ) that is responsible for formation of prostanoids , including thromboxane and prostaglandins such as prostacyclin ...

Wiktionary Word definitions in Wiktionary
alt. (context enzyme English) Any of several enzymes that catalyze the conversion of arachidonic acid into prostaglandins; their inhibition is the mode of action of aspirin and ibuprofen. n. (context enzyme English) Any of several enzymes that catalyze ...