Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun Any of a group of simple water-soluble proteins found in the sperm of certain animals, especially fish, that are strongly basic, are not coagulated by heat, and yield chiefly arginine upon hydrolysis. In purified form, protamines are used in a long-acting formulation of insulin and to neutralize the anticoagulant effects of heparin.

from The Century Dictionary.

  • noun A member of a group which comprises the simplest albumins known to occur in the animal body.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun biochemistry any of a class of proteins, rich in arginine, found in the sperm of fish; used medicinally to control the action of insulin

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun a simple protein found in fish sperm; rich in arginine; simpler in composition than globulin or albumin; counteracts the anticoagulant effect of heparin

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