\Ru`mi*nan"ti*a\, n. pl. [NL.] (Zo["o]l.)
A division of Artiodactyla having four stomachs. This
division includes the camels, deer, antelopes, goats, sheep,
neat cattle, and allies.
Note: The vegetable food, after the first mastication, enters
      the first stomach (r). It afterwards passes into the
      second (n), where it is moistened, and formed into
      pellets which the animal has the power of bringing back
      to the mouth to be chewed again, after which it is
      swallowed into the third stomach (m), whence it passes
      to the fourth (s), where it is finally digested.