omasum

[ oh-mey-suhm ]

noun

, plural o·ma·sa [oh-, mey, -s, uh],

1. the third stomach of a ruminant, between the reticulum and the abomasum; the manyplies.

omasum

/ əʊˈmeɪsəm /

noun

1. another name for psalterium

omasum

/ ō-mā′səm /

, Plural omasa

1. 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.
2. See more at ruminant

Word History and Origins

Origin of omasum¹

1700–10; < New Latin, Latin omāsum bullock's tripe

Word History and Origins

Origin of omasum¹

C18: from Latin: bullock's tripe

Example Sentences

In a shallow bath of a hearty brown sauce of ground nuts and red oil sat part of one of the four chambers of a cow’s stomach, the rumen, or omasum, or perhaps the abomasum.

From New York Times

The fourth or digestive stomach of a ruminant, which leads from the third stomach omasum.

From Project Gutenberg

The first stomach or paunch; b. the second stomach, bonnet, king's-hood, or honey-comb; o. the third stomach, or omasum; a. the fourth stomach, or abomasum; g. the gullet; py. the pylorus.

From Project Gutenberg

Of the four stomachs, the rumen was full of food, the reticulum, the omasum, and the abomasum exhibited purple or livid spots, according to their place.

From Project Gutenberg

From the omasum the food is finally deposited in the abomasum, a cavity considerably larger than either the second or third stomach, although less than the first.

From Project Gutenberg