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prostaglandin

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prostaglandin

Main Entry:: pros·ta·glan·din
Pronunciation:: \ˌpräs-tə-ˈglan-dən\
Function:: noun
Etymology:: prostate gland + ¹-in; from its occurrence in the seminal fluid of animals
Date:: 1936

: any of various oxygenated unsaturated cyclic fatty acids of animals that are formed chiefly by the action of cyclooxygenase on arachidonic acid and perform a variety of hormonelike actions (as in controlling blood pressure or smooth muscle contraction)

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