metyrapone

noun
me·tyr·a·pone | \ mə-ˈtir-ə-ˌpōn also -ˈtīr- \

Medical Definition of metyrapone 

: a metabolic hormone C14H14N2O that inhibits biosynthesis of cortisol and corticosterone and is used to test for normal functioning of the pituitary gland — see metopirone

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