abomasum(redirected from abomasus)
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n. pl. aboma·sa (-sə)
The fourth division of the stomach in ruminant animals, such as cows, sheep, and deer, in which digestion takes place.
ab′o·ma′sal (-səl) adj.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.
abomasumThe 4th and last stomach of ruminants—e.g., cattle, deer, goats—which is suspended by the greater and lesser omenta. It is a source of rennin, as well as rennet, a rennin-containing enzyme preparation used to make cheese.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.
abomasumthe true digestive part of the RUMINANT STOMACH, secreting enzymes for the digestion of food prior to passing it on to the small intestine. The abomasum is HOMOLOGOUS with the monogastric stomach of non-ruminants.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005