Source : Webster's Revised Unabridged Dictionary (1913)

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.

Source : WordNet®

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