Definition of abomasum in English:

abomasum

noun

Zoology
  • The fourth stomach of a ruminant, which receives food from the omasum and passes it to the small intestine.

    • ‘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.’
    • ‘Small rocks were found in the abomasa of 26 of the 31 caribou whose stomachs were examined.’
    • ‘This ensures that during suckling milk is channeled directly to the abomasum bypassing wasteful ruminal fermentation.’
    • ‘The abomasum, known as the true stomach, normally lies on the floor of the abdomen, but can become filled with gas and rise to the top of the abdomen and become displaced.’
    • ‘Rennet is derived from the abomasum (fourth stomach) of newly born calves.’

Origin

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

Pronunciation

abomasum

/ˌæbəˈmeɪsəm//ˌabəˈmāsəm/