Noun
either of two related enzymes that control the production of prostaglandins and are blocked by aspirin
Source: WordNetCOX-1 and COX-2 inhibition At least two different types of cyclooxygenase occur COX-1 and COX-2. Source: Internet
The cyclooxygenase enzyme inhibited by NSAIDs was discovered to have at least 2 different versions: COX1 and COX2. Source: Internet