The Collaborative International Dictionary of English v.0.48:

Cola \Co"la\, n.,
   L. pl. of Colon.
   [Webster 1913 Suppl.]

The Collaborative International Dictionary of English v.0.48:

Cola \Co"la\, n. [NL., fr. a native name.] (Bot.)
   (a)

   1. A genus of sterculiaceous trees, natives of tropical
      Africa, esp. Guinea, but now naturalized in tropical
      America, esp. in the West Indies and Brazil.
      (b) Same as Cola nut, below.
          [Webster 1913 Suppl.]

   2. a dark-colored carbonated soft drink flavored with extract
      of the cola nut, and often colored with caramel; also, any
      soft drink similar in color and flavor to a cola-flavored
      drink. The name was predominantly derived from the popular
      soft drink Coca-Cola.
      [PJC]

WordNet (r) 3.0 (2006):

Cola
    n 1: large genus of African trees bearing kola nuts [syn:
         Cola, genus Cola]
    2: carbonated drink flavored with extract from kola nuts (`dope'
       is a southernism in the United States) [syn: cola, dope]