Source : Webster's Revised Unabridged Dictionary (1913)

Emulsify \E*mul"si*fy\, v. t. [Emulsion + -fy.]
   To convert into an emulsion; to form an emulsion; to reduce
   from an oily substance to a milky fluid in which the fat
   globules are in a very finely divided state, giving it the
   semblance of solution; as, the pancreatic juice emulsifies
   the oily part of food.

Source : WordNet®

emulsify
     v 1: cause to become an emulsion; make into an emulsion [ant: {demulsify}]
     2: form into or become an emulsion; "The solution emulsified"
        [ant: {demulsify}]
     [also: {emulsified}]