Source : Webster's Revised Unabridged Dictionary (1913)

Souffle \Souf"fle\, n. [F.] (Med.)
   A murmuring or blowing sound; as, the uterine souffle heard
   over the pregnant uterus.

Source : WordNet®

souffle
     n : light fluffy dish of egg yolks and stiffly beaten egg whites
         mixed with e.g. cheese or fish or fruit