Abomasum
Pronunciation : Ab`o*ma"sum
Part of Speech : Ab`o*ma"sus
Etymology : [NL., fr. L. ab + omasum (a Celtic word.] (Anat.)
Definition : Defn: The fourth or digestive stomach of a ruminant, which leads from the third stomach omasum. See Ruminantia.
Source : Webster's Unabridged Dictionary, 1913