Source : WordNet®

localisation
     n 1: (physiology) the principle that specific functions have
          relatively circumscribed locations in some particular
          part or organ of the body [syn: {localization of
          function}, {localisation of function}, {localization
          principle}, {localisation principle}, {localization}]
     2: a determination of the location of something; "he got a good
        fix on the target" [syn: {localization}, {location}, {locating},
         {fix}]

Source : Free On-Line Dictionary of Computing

localisation
     
         (l10n) Adapting a product to meet the language,
        cultural and other requirements of a specific target market
        "{locale}".
     
        Localisation includes the translation of the {user interface},
        {on-line help} and {documentation}, and ensuring the images
        and concepts are culturally appropriate and sensitive.  There
        may be subtle cross-cultural considerations, e.g. do the icons
        make sense in other parts of the world?
     
        {Internationalisation} is the process that occurs during
        application development that makes localisation easier by
        separating the details that differ between locales from the
        rest of the program that stays the same.  If
        internationalisation is thorough, localisation will require no
        programming.
     
        The abbreviation l10n means "L - 10 letters - N".
     
        (1999-06-09)