The Collaborative International Dictionary of English v.0.48:

Balata \Bal"a*ta\, n. [Sp., prob. fr. native name.]
   1. A West Indian sapotaceous tree (Bumelia retusa).
      [Webster 1913 Suppl.]

   2. The bully tree (Minusops globosa); also, its milky juice
      (); also, its milky juice (), which when dried
      constitutes an elastic gum called chicle, or chicle
      gum.
      [Webster 1913 Suppl.]

The Collaborative International Dictionary of English v.0.48:

Chicle \Chic"le\, n., Chicle gum \Chicle gum\ [Amer. Sp.
   chicle.]
   A gumlike substance obtained from the bully tree (Mimusops
   globosa) and sometimes also from the naseberry or sapodilla
   (Sapota zapotilla). It is more plastic than caoutchouc and
   more elastic than gutta-percha, as an adulterant of which it
   is used in England. It is used largely in the United States
   in making chewing gum.
   [Webster 1913 Suppl.]

WordNet (r) 3.0 (2006):

chicle gum
    n 1: gum-like substance from the sapodilla [syn: chicle,
         chicle gum]