prostacyclin
noun
pros·ta·cy·clin ˌprä-stə-ˈsī-klən 
: a prostaglandin that is a metabolite of arachidonic acid, inhibits platelet aggregation, and dilates blood vessels
Word History
Etymology
prosta- (as in prostaglandin) + cycl- + -in entry 1
First Known Use
1976, in the meaning defined above
Medical Definition
prostacyclin
noun
pros·ta·cy·clin ˌpräs-tə-ˈsī-klən
: a prostaglandin that is a metabolite of arachidonic acid, inhibits aggregation of platelets, and dilates blood vessels
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