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A dry brownish powder containing the soluble thermolabile fraction of mammalian livers that is capable of stimulating the production of red blood cells.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.
A dry brown powder obtained from mammalian livers that was once used as a crude source of vitamin B12 and other vitamins.
See also: extract
Medical Dictionary, © 2009 Farlex and Partners
liver extractA former, crude but effective, treatment for PERNICIOUS ANAEMIA, now superseded by the active principle hydroxycobalamin.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005