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 Artiodactyla
 偶蹄目

 Ar·tio·dac·ty·la /ˌɑrtɪoˈdæktələ/ 名詞 複數

 Ar·ti·o·dac·ty·la n. pl.  Zool. One of the divisions of the ungulate animals. The functional toes of the hind foot are even in number, and the third digit of each foot (corresponding to the middle finger in man) is asymmetrical and paired with the fourth digit, as in the hog, the sheep, and the ox; -- opposed to Perissodactyla.
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 Artiodactyla
      n : an order of hooved mammals of the subclass Eutheria
          (including pigs and peccaries and hippopotami and members
          of the suborder Ruminantia) having an even number of
          functional toes [syn: order Artiodactyla]