资料来源 : Webster's Revised Unabridged Dictionary (1913)

Avocado \Av`o*ca"do\, n. [Corrupted from the Mexican ahuacatl:
   cf. Sp. aguacate, F. aguacat['e], avocat, G. avogadobaum.]
   The pulpy fruit of {Persea gratissima}, a tree of tropical
   America. It is about the size and shape of a large pear; --
   called also {avocado pear}, {alligator pear}, {midshipman's
   butter}.

资料来源 : WordNet®

avocado pear
     n : a pear-shaped tropical fruit with green or blackish skin and
         rich yellowish pulp enclosing a single large seed [syn: {avocado},
          {alligator pear}, {aguacate}]