Source : Webster's Revised Unabridged Dictionary (1913)

Dika \Di"ka\, n. [Native West African name.]
   A kind of food, made from the almondlike seeds of the
   {Irvingia Barteri}, much used by natives of the west coast of
   Africa; -- called also {dika bread}.

Source : WordNet®

dika
     n : African tree with edible yellow fruit resembling mangos;
         valued for its oil-rich seed and hardy green
         termite-resistant wood [syn: {wild mango}, {wild mango
         tree}, {Irvingia gabonensis}]