[1] : The Collaborative International Dictionary of English v.0.48

sterculiaceous \stercu`lia"ceous\, a. nl. sterculia, the
   typical genus, fr. l. sterculius the deity that presided over
   manuring, from stercus dung. so called because one of the
   original species is fetid. bot.
   of or pertaining to a natural order sterculiaceae of
   polypetalous exogenous plants, mostly tropical. the cacao
   theobroma cacao is the most useful plant of the order.
   1913 webster
see also:
sterculiaceae theobroma cacao 

[2] : The Collaborative International Dictionary of English v.0.48

theobromine \the`obro"mine\, n. chem.
   an alkaloidal ureide, c7h8n4o2, homologous with and
   resembling caffeine, produced artificially, and also
   extracted from cacao and chocolate from theobroma cacao
   as a bitter white crystalline substance; -- called also
   dimethyl xanthine.
   1913 webster
see also:
c7h8n4o2 theobroma cacao dimethyl xanthine 

[3] : The Collaborative International Dictionary of English v.0.48

cacao \caca"o\, n. sp., fr. mex. kakahuatl. cf. cocoa,
   chocolate bot.
   a small evergreen tree theobroma cacao of south america
   and the west indies. its fruit contains an edible pulp,
   inclosing seeds about the size of an almond, from which
   cocoa, chocolate, and broma are prepared.
   1913 webster cachaemia
see also:
cocoa chocolate theobroma cacao 

[4] : The Collaborative International Dictionary of English v.0.48

chocolate \choc"olate\, n. sp., fr. the mexican name of the
   cacao. cf. cacao, cocoa.
   1. a paste or cake composed of the roasted seeds of the
      theobroma cacao ground and mixed with other ingredients,
      usually sugar, and cinnamon or vanilla.
      1913 webster

   2. the beverage made by dissolving a portion of the paste or
      cake in boiling water or milk.
      1913 webster

   chocolate house, a house in which customers may be served
      with chocolate.

   chocolate nut. see cacao.
      1913 webster
see also:
cacao cocoa theobroma cacao chocolate house chocolate nut 

[5] : WordNet (r) 2.0

theobroma cacao
     n : tropical american tree producing cacao beans syn: cacao,
         cacao tree, chocolate tree
see also:
cacao cacao tree chocolate tree 

Theobroma >> T Words
Theobroma, definition of term: Theobroma
theobroma_pag1.html

Cacao >> C Words
Cacao, definition of term: Cacao
cacao_pag1.html