Webster's 1913 Dictionary
ABOMASUM; ABOMASUS
Ab `o *ma "sum, Ab `o *ma "sus, n. Etym: [NL. , fr. L. ab + omasum (a Celtic word. ] (Anat. )
Defn: The fourth or digestive stomach of a ruminant, which leads from the third stomach omasum. See Ruminantia.
New American Oxford Dictionary
abomasum
ab o ma sum |ˌabəˈmāsəm ˌæbəˈmeɪsəm | ▶noun ( pl. abomasa |-sə | ) Zoology the fourth stomach of a ruminant, which receives food from the omasum and passes it to the small intestine. ORIGIN late 17th cent.: modern Latin, from ab- ‘away, from ’ + omasum (see omasum ).
Oxford Dictionary
abomasum
abomasum |ˌabəʊˈmeɪsəm | ▶noun ( pl. abomasa |-sə | ) Zoology the fourth stomach of a ruminant, which receives food from the omasum and passes it to the small intestine. ORIGIN late 17th cent.: modern Latin, from ab- ‘away, from ’ + omasum (see omasum ).
The Wordsmith Dictionary