rumen Meaning, Definition & Usage

  1. noun the first compartment of the stomach of a ruminant; here food is collected and returned to the mouth as cud for chewing
    first stomach.

WordNet

Ru"men noun
Etymology
L. rumen, -inis, the throat.
Definitions
  1. (Anat.) The first stomach of ruminants; the paunch; the fardingbag. See Illust. below.
  2. The cud of a ruminant.

Webster 1913