Codeine n. (Chem.) One of the opium alkaloids; a white crystalline substance, C18H21NO3, similar to and regarded as a derivative of morphine, but much feebler in its action; called also codeia.
... to the main camp then, but when I got back with the codeine she was asleep with her head on his shoulder, and he kneeled there till four without moving—he was game, that Mr. Ferrau, and ... — The Strange Cases of Dr. Stanchon • Josephine Daskam Bacon