Ruminantia
/ˌruːmɪˈnantɪə/noun
Treated as plural. A division of hoofed mammals that comprises the ruminants, now regarded as a suborder of Artiodactyla that excludes the camel family.
Origin
Early 19th century; earliest use found in William Lawrence (1783–1867), surgeon. From scientific Latin Ruminantia, group name, specific use of classical Latin rūminantia, neuter plural of the present participle of rūminārī or rūmināre ruminate.