The Collaborative International Dictionary of English v.0.48:

coracan \coracan\ n.
   an East Indian cereal grass (Eleusine coracana) whose seeds
   yield a somewhat bitter flour, a staple in the Orient.

   Syn: finger millet, ragi, ragee, African millet, corakan,
        kurakkan, Eleusine coracana.
        [WordNet 1.5]

WordNet (r) 3.0 (2006):

coracan
    n 1: East Indian cereal grass whose seed yield a somewhat bitter
         flour, a staple in the Orient [syn: finger millet,
         ragi, ragee, African millet, coracan, corakan,
         kurakkan, Eleusine coracana]