DICT.TW Dictionary Taiwan

 mas·to·don /ˈmæstəˌdɑn, dən/
 乳齒象

 Mas·to·don n.  Paleon. An extinct genus of mammals closely allied to the elephant, but having less complex molar teeth, and often a pair of lower, as well as upper, tusks, which are incisor teeth.  The species were mostly larger than elephants, and their remains occur in nearly all parts of the world in deposits ranging from Miocene to late Quaternary time.
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 mastodon
      n : extinct elephant-like mammal that flourished worldwide from
          Miocene through Pleistocene times; differ from mammoths
          in the form of the molar teeth [syn: mastodont]