Source : Webster's Revised Unabridged Dictionary (1913)

Industrial \In*dus"tri*al\, a. [Cf. F. industriel, LL.
   industrialis. See {Industry}.]
   Consisting in industry; pertaining to industry, or the arts
   and products of industry; concerning those employed in labor,
   especially in manual labor, and their wages, duties, and
   rights.

         The great ideas of industrial development and economic
         social amelioration.                     --M. Arnold.

Source : WordNet®

industrial
     adj 1: of or relating to or resulting from industry; "industrial
            output"
     2: having highly developed industries; "the industrial
        revolution"; "an industrial nation" [ant: {nonindustrial}]
     3: employed in industry; "industrial workers"; "the industrial
        term in use among professional thieves"
     4: employed in industry; "the industrial classes"; "industrial
        work"
     5: suitable to stand up to hard wear; "industrial carpeting"