Source : Webster's Revised Unabridged Dictionary (1913)

Bechamel \Bech"a*mel\, n. [F. b['e]chamel, named from its
   inventor, Louis de B['e]chamel.] (Cookery)
   A rich, white sauce, prepared with butter and cream.

Source : WordNet®

bechamel
     n : milk thickened with a butter and flour roux [syn: {white
         sauce}, {bechamel sauce}]