The Collaborative International Dictionary of English v.0.48:

Cook \Cook\, v. t. [imp. & p. p. Cooked (k[oo^]kt); p. pr &
   vb. n. Cooking.]
   1. To prepare, as food, by boiling, roasting, baking,
      broiling, etc.; to make suitable for eating, by the agency
      of fire or heat.
      [1913 Webster]

   2. To concoct or prepare; hence, to tamper with or alter; to
      garble; -- often with up; as, to cook up a story; to cook
      an account. [Colloq.]
      [1913 Webster]

            They all of them receive the same advices from
            abroad, and very often in the same words; but their
            way of cooking it is so different.    --Addison.
      [1913 Webster]

WordNet (r) 3.0 (2006):

cooked
    adj 1: having been prepared for eating by the application of
           heat [ant: raw]