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n. pl. oma·sa (-sə)
The third division of the stomach of a ruminant animal, located between the abomasum and the reticulum. Also called manyplies.
omasumone of four chambers in the RUMINANT STOMACH, lying between the fermentation section and the true stomach.
the third and smallest compartment of the forestomachs of the ruminant. Connects with the reticulum through the reticulo-omasal orifice and with the abomasum through the omasoabomasal orifice. Called also the bible because of its many, tightly packed leaves.