(organic chemistry) A tricyclic heterocycle consisting of two benzene rings fused to oxazine
phenoxybenzamine
phenoxybenzamine
noun
(pharmacology) A drug that blocks the activity of alpha-receptors and is used in the form of its hydrochloride C₁₈H₂₂ClNO·HCl especially to treat hypertension and sweating due to pheochromocytoma.
schizaxon
xanthorrhiza
zeaxanthin
zeaxanthin
noun
(organic chemistry) A yellow crystalline carotenoid alcohol that occurs widely with lutein, with which it is isomeric, and is the chief pigment of maize