(Christianity, West Syriac) catholicos, high-ranking bishop
morphine
morphine
noun
(biochemistry, pharmacology) A crystalline alkaloid (7,8-didehydro-4,5-epoxy-17-methyl-morphinan-3,6-diol), extracted from opium, the salts of which are soluble in water and are used as analgesics, anaesthetics and sedatives; it is one of a group of morphine alkaloids.
