ru·men 
(rmən)
(rmən)n. pl. ru·mi·na (-mə-nə) or ru·mens
The first division of the stomach of a ruminant animal, in which most food collects immediately after being swallowed and from which it is later returned to the mouth as cud for thorough chewing. Also called paunch.
[Latin rūmen; akin to Sanskrit romantha-, ruminant, chewing the cud.]
rumi·nal adj.
- on (one's)/the way
- on (one's) /the way
- on one's the way
- on (one's) toes
- on one's toes
- on (one's) uppers
- on one's uppers
- on one's way
- on one/the onehand
- on order
- on own
- on own account
- on own ground
- on own hook
- on own initiative
- on pain of
- on paper
- on pins and needles
- on principle
- on purpose
- on radar screen
- on radar screen
- on record
- on relief
- on report