The definition of a liter is a unit for measuring volume in the metric system.(noun)
An example of a liter is a bottle containing 33.76 ounces or 1.0567 quarters of soda.
See liter in Webster's New World College Dictionary
Origin: Fr litre < litron, obs. unit of measure < ML litra < Gr, a pound
See liter in American Heritage Dictionary 4
noun Abbr. l or lit.
Origin: French litre
Origin: , from obsolete litron, measure of capacity
Origin: , from Medieval Latin lītra
Origin: , from Greek, unit of weight.
Learn more about liter