RUMEN
rumen, first stomach
(noun) the first compartment of the stomach of a ruminant; here food is collected and returned to the mouth as cud for chewing
Source: WordNet® 3.1
Etymology
Noun
rumen (plural rumina or rumens)
The first compartment of the stomach of a cow or other ruminants.
Synonyms
• paunch
• fack
• fardingbag
Source: Wiktionary
Ru"men, n. Etym: [L. rumen, -inis, the throat.]
1. (Anat.)
Definition: The first stomach of ruminants; the paunch; the fardingbag. See
Illust. below.
2. The cud of a ruminant.
Source: Webster’s Unabridged Dictionary 1913 Edition