Webster's Revised Unabridged Dictionary · 1913

Herbivora

Herbivora , noun, plural

[New Latin, from Latin herba herb + vorare to devour.]

(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.