Source : Webster's Revised Unabridged Dictionary (1913)

Liter \Li"ter\, Litre \Li"tre\, n. [F. litre, Gr. ? a silver
   coin.]
   A measure of capacity in the metric system, being a cubic
   decimeter, equal to 61.022 cubic inches, or 2.113 American
   pints, or 1.76 English pints.

Litre \Li"tre\, n. [F.]
   Same as {Liter}.

Source : WordNet®

litre
     n : a metric unit of capacity equal to the volume of 1 kilogram
         of pure water at 4 degrees centigrade and 760 mm of
         mercury (or approximately 1.76 pints) [syn: {liter}, {l},
          {cubic decimeter}, {cubic decimetre}]