The Collaborative International Dictionary of English v.0.48:

canistel \canistel\ n.
   1. a tropical tree of Florida and West Indies (Pouteria
      campechiana nervosa) yielding edible fruit.

   Syn: canistel tree.
        [WordNet 1.5]

   2. an ovoid orange-yellow mealy sweet fruit of Florida and
      West Indies.

   Syn: eggfruit.
        [WordNet 1.5]

WordNet (r) 3.0 (2006):

Pouteria campechiana nervosa
    n 1: tropical tree of Florida and West Indies yielding edible
         fruit [syn: canistel, canistel tree, Pouteria
         campechiana nervosa]