omasum

o·ma·sum  (-msm)

n. pl. o·ma·sa (-s)

The third division of the stomach of a ruminant animal, located between the abomasum and the reticulum. Also called manyplies.

---

[Latin omsum, bullock's tripe, probably of Celtic origin.]

---

omasum  (-msm)

Plural omasa

The third division of the stomach in ruminant animals. It removes excess water from food and further reduces the size of food particles before passing them to the abomasum for digestion by enzymes. See more at ruminant.

Thesaurus

Noun

1.

omasum - the third compartment of the stomach of a ruminant psalterium, third stomach ruminant - any of various cud-chewing hoofed mammals having a stomach divided into four (occasionally three) compartments stomach, tum, tummy, breadbasket - an enlarged and muscular saclike organ of the alimentary canal; the principal organ of digestion