Is “Rumen” a Scrabble word?
Yes
RUMEN
Valid in at least one Scrabble dictionary
Valid in these dictionaries
SOWPODS / CSW
Scrabble UK & International
TWL / NWL
Scrabble North America
Large English Dictionary
General English word list
Meaning of Rumen
/ˈɹu.mən/
noun
1.The first compartment of the stomach of a cow or other ruminants.
Synonyms: fack, fardingbag, paunch