The Collaborative International Dictionary of English v.0.48:

Flavor \Fla"vor\, v. t. [imp. & p. p. Flavored; p. pr. & vb.
   n. Flavoring.]
   To give flavor to; to add something (as salt or a spice) to,
   to give character or zest.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

flavoring \flavoring\ n.
   something added to food primarily for the savor it imparts.

   Syn: flavorer, flavourer, flavouring, seasoner, seasoning.
        [WordNet 1.5]

WordNet (r) 3.0 (2006):

flavoring
    n 1: something added to food primarily for the savor it imparts
         [syn: flavorer, flavourer, flavoring, flavouring,
         seasoner, seasoning]