DuckCorp Dico

Found one definition

1.                 From The Collaborative International Dictionary of English v.0.48:
                   
   
   
                   
                     
   Decameter \Dec"a*me`ter\, Decametre \Dec"a*me`tre\, n. [F.
      d['e]cam[`e]tre; Gr. de`ka ten + m[`e]tre. See Meter.]
      A measure of length in the metric system; ten meters, equal
      to about 393.7 inches.
      [1913 Webster]