What does "chicle" mean?

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.