Medical Definition of L
L: Abbreviation for liter, a metric measure of capacity that, by definition, is equal to the volume of a kilogram of water at 4 degrees centigrade and at standard atmospheric pressure of 760 millimeters of mercury.
The abbreviation for liter can also be written as a lower-case "l". The word "liter" derives from the French "litre" and that, in turn, is derived from the Latin "litra", a pound.Source: MedTerms™ Medical Dictionary
Last Editorial Review: 6/9/2016
Medical Dictionary Definitions A - Z
Search Medical Dictionary