abomasum

American  

[ab-uh-mey-suhm] / ˌæb əˈmeɪ səm /

Rarely abomasus

noun

abomasa plural

1. the fourth or true stomach of cud-chewing animals, lying next to the omasum.

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abomasum British  

/ ˌæbəˈmeɪsəm /

noun

1. the fourth and last compartment of the stomach of ruminants, which receives and digests food from the psalterium and passes it on to the small intestine

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abomasum Scientific  

/ ăb′ō-mā′səm /

abomasa plural

1. The fourth division of the stomach in ruminant animals, and the only one having glands that secrete acids and enzymes for digestion. It corresponds anatomically to the stomachs of other mammals.

2. See more at ruminant

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Etymology

Origin of abomasum

From New Latin, dating back to 1700–10; see origin at ab-, omasum

Example Sentences

The cud then passes onto the fourth stomach, the abomasum, where it is digested by enzymes produced by the ruminant.

From Textbooks • Jun. 9, 2022

The abomasum is the “true” stomach and is the equivalent of the monogastric stomach chamber where gastric juices are secreted.

From Textbooks • Jun. 9, 2022

The four compartments of the stomach are called the rumen, reticulum, omasum, and abomasum.

From Textbooks • Jun. 9, 2022

The ruminant regurgitates cud from the rumen, and the food is passed into the abomasum for water removal and then into the small and large intestines for nutrient and further water absorption.

From Textbooks • Jun. 9, 2022

In the adult form it attaches itself to the mucous membrane of the fourth stomach or abomasum, and lives by sucking blood.

From Common Diseases of Farm Animals by Craig, R. A., D. V. M.