n. [ From native name of the Calabar bean: cf. F. ésérine. ] (Chem.) An alkaloid found in the Calabar bean, and the seed of Physostigma venenosum; physostigmine. It is used in ophthalmic surgery for its effect in contracting the pupil. [ 1913 Webster ]
n. [ L. sericus silken. ] (Chem.) one of the natural
n. [ L. sericus silken. ] (Chem.) one of the natural