1. The first stomach of a ruminant; the cud.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• romen,
• rommen,
• eumen,
• 5umen,
• 4umen,
• rymen,
• rhmen,
• rjmen,
• rimen,
• r8men,
• r7men,
• ruken,
• rujen,
• rumeen,
• roomen,
• rumon,
• Rumaan,
• Rumeni,
• Ruemen,
• Rumeon

• run on,
• run-in,
• run-on,
• rumania,
• runyon,
• runion,
• runyan,
• Runnion.

The adjective form of the word "rumen" is "ruminal".

The plural of the "rumen" can be the "rumens".

The singular of the "rumen" can be the "rumen".