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Glite Dictionary
abomasum

abomasum

1 9.9
The fourth and last stomach part in animals like cows and sheep where digestion happens
  • noun
  • /ˌæbəˈmeɪsəm/
  • Specialized
translation icon : abomaso
  • The contents collected from the rumen, omasum, and abomasum were weighed.
  • omasum and abomasum

Examples

  • In ruminant animals, the abomasum is where true digestion occurs after food passes through the rumen and omasum.

  • The veterinarian examined the abomasum of the cow during the health check to ensure proper digestion.

  • During the dissection of the sheep, the students observed the abomasum as the final part of the digestive system.

Synonyms

fourth stomach
vsabomasum
  • Specialized
8.5

A last stomach compartment in animals like cows and sheep that digests food

is the precise anatomical term for that same chamber

Surface Forms

abomasum singular
abomasums plural

Morphology

abomasum = omasum (opaque) = ab + omasum

Although segmentable into 'ab-' + 'omasum', the prefix is not a productive, meaning-bearing element for general learners and the term is highly specialized.

Etymology

The word abomasum comes from ab- meaning 'away from' and omasum, the name of the earlier stomach part. So the abomasum is the stomach 'away from' the omasum and is the fourth, 'true stomach' in animals like cows, where real digestion takes place.