[1] : The Collaborative International Dictionary of English v.0.48

pachyderm \pach"yderm\ pa^k"i^d~erm, n. cf. f.
   pachyderme. zool.
   any of various nonruminant hoofed mammals having very thick
   skin, including the elephant, rhinoceros, and
   hippopotamus, one of the pachydermata.
   wordnet 1.5 + 1913 webster
see also:
elephant rhinoceros hippopotamus 

[2] : WordNet (r) 2.0

pachyderm
     n : any of various nonruminant hoofed mammals having very thick
         skin: elephant; rhinoceros; hippopotamus

Pachyderm >> P Words
Pachyderm, definition of term: Pachyderm
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