Dictionary![]() ![]() ca•seinPronunciation: (kā'sēn, -sē-in, kā-sēn'), [key] —n. 1. Biochem.a protein precipitated from milk, as by rennet, and forming the basis of cheese and certain plastics. 2. Fine Arts. a. an emulsion made from a solution of this precipitated protein, water, and ammonia carbonate. b. a paint in which this emulsion is used as a binder. c. a picture produced with this paint and emulsion. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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