The Collaborative International Dictionary
Protamin
Protamin \Pro"ta*min\, n. [Gr. prw^tos first.] (Physiol. Chem.) An amorphous nitrogenous substance found in the spermatic fluid of salmon. It is soluble in water, which an alkaline reaction, and unites with acids and metallic bases.
Wiktionary
protamin
n. (context biochemistry English) An amorphous nitrogenous substance found in the spermatic fluid of salmon. It is soluble in water, with an alkaline reaction, and unites with acids and metallic bases.