Wordnet 3.0
NOUN (1)
1. 
 a metric unit of capacity, formerly defined as the volume of one kilogram of pure water under standard conditions; 
 now equal to 1,000 cubic centimeters (or approximately 1.75 pints); 
[syn: liter, litre, l, cubic decimeter, cubic decimetre]
WordNet (r) 3.0 (2006):
cubic decimeter
    n 1: a metric unit of capacity, formerly defined as the volume
         of one kilogram of pure water under standard conditions;
         now equal to 1,000 cubic centimeters (or approximately 1.75
         pints) [syn: liter, litre, l, cubic decimeter,
         cubic decimetre]