n. [ See Cousinage. ] (Law)
n. [ For co. sinus, an abbrev. of L. complementi sinus. ] (Trig.) The sine of the complement of an arc or angle. See Illust. of Functions. [ 1913 Webster ]
n. (Chem.) An organic base,
n. (Physiol. Chem.) A crystalline nitrogenous substance, formed in the decomposition of creatin (one of the constituents of muscle tissue). Chemically, it is methyl glycocoll. [ 1913 Webster ]