Source : Webster's Revised Unabridged Dictionary (1913)

Chervil \Cher"vil\, n. [AS. cerfille, fr. L. caerefolium,
   chaerephyllum, Gr. ?; ? to rejoice + ? leaf.] (Bot.)
   A plant ({Anthriscus cerefolium}) with pinnately divided
   aromatic leaves, of which several curled varieties are used
   in soups and salads.

Source : WordNet®

chervil
     n 1: aromatic annual Old World herb cultivated for its finely
          divided and often curly leaves for use especially in
          soups and salads [syn: {beaked parsley}, {Anthriscus
          cereifolium}]
     2: fresh ferny parsley-like leaves used as a garnish with
        chicken and veal and omelets and green salads and spinach