Deciliter

from WordNet (r) 3.0 (2006)

deciliter
    n 1: a metric unit of volume equal to one tenth of a liter [syn:
         {deciliter}, {decilitre}, {dl}]

from The Collaborative International Dictionary of English v.0.48

Deciliter \Dec"i*li`ter\, Decilitre \Dec"i*li`tre\, n. [F.
   d['e]cilitre; pref. d['e]ci- tenth (L. decimus) + litre. See
   {Liter}.]
   A measure of capacity or volume in the metric system; one
   tenth of a liter, equal to 6.1022 cubic inches, or 3.38 fluid
   ounces.
   [1913 Webster]