- a white, crystalline, slightly bitter alkaloid, C18H21NO3, obtained from opium, used in medicine chiefly as an analgesic or sedative and to inhibit coughing.
Origin of codeine
Examples from the Web for codeina
Mercury, codeina, and particularly tartar emetic, are cited as capable of exciting oesophagitis.
- a white crystalline alkaloid prepared mainly from morphine and having a similar but milder action. It is used as an analgesic, an antidiarrhoeal, and to relieve coughing. Formula: C 18 H 21 NO 3
Word Origin and History for codeina
alkaloid present in opium, 1838, from French codéine, coined, with chemical suffix -ine (2), from Greek kodeia "poppy head," related to kooz "prison," literally "hollow place;" kodon "bell, mouth of a trumpet;" koilos "hollow," from PIE root *kel- (see cell). Originally codeina; modern form is from 1881.
- An alkaloid narcotic derived from opium or morphine and used as a cough suppressant, analgesic, and hypnotic.methylmorphine
- An alkaloid narcotic derived from opium or morphine and used primarily as an analgesic and a cough suppressant. Chemical formula: C18H21NO3.