<zoology> An extensive division of Mammalia. It formerly included the Proboscidea, Hyracoidea, Perissodactyla, and Artiodactyla, but by later writers it is generally restricted to the two latter groups (Ungulata). They feed almost exclusively upon vegetation.
Origin: NL, fr. L. Herba herb + vorare to devour.
(01 Mar 1998)
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