"ruminant" in the noun sense
1. ruminant
any of various cud-chewing hoofed mammals having a stomach divided into four (occasionally three) compartments
"ruminant" in the adjective sense
1. ruminant
related to or characteristic of animals of the suborder Ruminantia or any other animal that chews a cud
"ruminant mammals"
Source: WordNet® (An amazing lexical database of English)
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