Source : Webster's Revised Unabridged Dictionary (1913)

Decaliter \Dec"a*li`ter\, Decalitre \Dec"a*li`tre\, n. [F.
   d['e]calitre; Gr. de`ka ten + F. litre. See {Liter}.]
   A measure of capacity in the metric system; a cubic volume of
   ten liters, equal to about 610.24 cubic inches, that is,
   2.642 wine gallons.

Source : WordNet®

decalitre
     n : a metric unit of volume or capacity equal to 10 liters [syn:
          {dekaliter}, {dekalitre}, {decaliter}, {dal}, {dkl}]