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"hoofed," 1802, from Late Latin ungulatus "hoofed," from ungula "hoof, claw, talon," diminutive (in form but not sense) of unguis "nail" (see ungual). Ungulata, the order of hoofed mammals, is recorded from 1839.
A hoofed mammal. Ungulates belong to two orders, Artiodactyla (those having an even number of toes) and Perissodactyla (those having an odd number of toes). See more at artiodactyl, perissodactyl.