1. [n]  powder of ground roasted cocao beans with most of the fat removed
2. [n]  made from baking chocolate or cocoa powder and milk and sugar

Cocoa
Cocoa

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1. \Co"coa\ (k[=o]"k[-o]), n., Cocoa palm \Co"coa palm`\
   (p[aum]m`)[Sp. & Pg. coco cocoanut, in Sp. also, cocoa palm.
   The Portuguese name is said to have been given from the
   monkeylike face at the base of the nut, fr. Pg. coco a
   bugbear, an ugly mask to frighten children. Cf., however, Gr.
   koy^ki the cocoa palm and its fruit, ko`i:x, ko`i:kos, a kind
   of Egyptian palm.] (Bot.)
   A palm tree producing the cocoanut ({Cocos nucifera}). It
   grows in nearly all tropical countries, attaining a height of
   sixty or eighty feet. The trunk is without branches, and has
   a tuft of leaves at the top, each being fifteen or twenty
   feet in length, and at the base of these the nuts hang in
   clusters; the cocoanut tree.
   

2. \Co"coa\, n. [Corrupted fr. cacao.]
   A preparation made from the seeds of the chocolate tree, and
   used in making, a beverage; also the beverage made from cocoa
   or cocoa shells.
   {Cocoa shells}, the husks which separate from the cacao seeds
      in preparing them for use.