Pronunciation: - ' äk-si-j ə - ˌ n ā s
Function: noun
Etymology: cycl- + oxygenase, an enzyme, from oxygen + -ase
Date: 1975
: an enzyme that catalyzes the conversion of arachidonic acid to prostaglandins and that has two isoforms of which one is involved in the creation of prostaglandins which mediate inflammation and pain