Medical Definition of cacao
1: the dried partly fermented fatty seeds of a South American evergreen tree (Theobroma cacao of the family Sterculiaceae) that are used in making cocoa, chocolate, and cocoa butter—called also ,
2: a tree having small yellowish flowers followed by fleshy pods with many seeds that bear cacao—called also
Seen and Heard
What made you want to look up cacao? Please tell us where you read or heard it (including the quote, if possible).