Found 2 items, similar to Rumen.
English → English (WordNet) Definition: rumen rumen n : the first compartment of the stomach of a ruminant; here food is collected and returned to the mouth as cud for chewing [syn: first stomach] [also: rumina (pl)]
English → English (gcide) Definition: Rumen Rumen \Ru"men\, n. [L. rumen, - inis, the throat.] 1. (Anat.) The first stomach of ruminants; the paunch; the fardingbag. See Illust. below. [1913 Webster] 2. The cud of a ruminant. [1913 Webster]