Share this entry
abomasum Syllabification: ab·o·ma·sum
Pronunciation: /ˌabəˈmāsəm/

Definition of abomasum in English:

noun (plural abomasa-sə)

The fourth stomach of a ruminant, which receives food from the omasum and passes it to the small intestine.
Example sentences
  • Rennet is derived from the abomasum (fourth stomach) of newly born calves.
  • The usual source is the lining of the fourth stomach (the abomasum or true stomach) of a calf, though other young animals may be used.
  • This ensures that during suckling milk is channeled directly to the abomasum bypassing wasteful ruminal fermentation.


Late 17th century: modern Latin, from ab- 'away, from' + omasum (see omasum).

Definition of abomasum in:
Share this entry

What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.

Subscribe to remove ads and access premium resources