an act of leaking; leak.
something that leaks in or out.
the amount that leaks in or out.
Commerce. an allowance for loss by leaking.
Physics, Electricity. the loss of all or part of a useful agent, as of the electric current that flows through an insulator (leakage current) or of the magnetic flux that passes outside useful flux circuits (leakage flux).

Origin of leakage

First recorded in 1480–90; leak + -age
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for leakage

Contemporary Examples of leakage

Historical Examples of leakage

  • Vose explained that the leakage was due to the roughness of the trail.

  • The amount of leakage is, therefore, in direct proportion to the number of fixtures.

    Rural Hygiene

    Henry N. Ogden

  • No article of commerce is so liable to waste and leakage as turpentine.

    Among the Pines

    James R. Gilmore

  • Every fuel hold was filled to capacity, with no leakage and no emanation.

    Masters of Space

    Edward Elmer Smith

  • They'd have it heavily shielded—there'll be no leakage at all.

    Masters of Space

    Edward Elmer Smith

British Dictionary definitions for leakage



the act or an instance of leaking
something that escapes or enters by a leak
commerce an allowance made for partial loss (of stock, etc) due to leaking
  1. an undesired flow of electric current, neutrons, etc
  2. (as modifier)leakage current
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for leakage

late 15c., from leak (v.) + -age.

Online Etymology Dictionary, © 2010 Douglas Harper