PROTEIN

n. Prot'es-i2n. Lat., protein a (from irpwro?, first). Fr., proteine. Ger., P. 1. A substance or principle formerly supposed to be the base of the proteids and an e ential constituent ol foods, [a, 48.] 2. A peculiar body, closely allied to alkali-albumin (q. v.) and fibrin, and analogous to if not identical with casein A, ape; A", at; A3, ah; A4, all; Ch, chin; Ch2, loch (Scottish); [s. 342]