ADJECTIVE (4)

1. of or relating to or resulting from industry;
- Example: "industrial output"

2. having highly developed industries;
- Example: "the industrial revolution"
- Example: "an industrial nation"

3. employed in industry;
- Example: "the industrial classes"
- Example: "industrial work"

4. suitable to stand up to hard wear;
- Example: "industrial carpeting"

The Collaborative International Dictionary of English v.0.48:

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.
   [1913 Webster]

         The great ideas of industrial development and economic
         social amelioration.                     --M. Arnold.
   [1913 Webster]

   Industrial exhibition, a public exhibition of the various
      industrial products of a country, or of various countries.


   Industrial school, a school for teaching one or more
      branches of industry; also, a school for educating
      neglected children, and training them to habits of
      industry.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

blue-collar \blue-collar\ adj.
   1. of or designating work or workers in industry not
      requiring well-groomed appearance. [Narrower terms:
      industrial] white-collar
      [WordNet 1.5]

   2. of those who work for wages especially manual or
      industrial laborers. [Narrower terms: lower-class,
      low-class]

   Syn: propertyless, wage-earning, working-class.
        [WordNet 1.5]

WordNet (r) 3.0 (2006):

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; "the industrial classes"; "industrial
       work"
    4: suitable to stand up to hard wear; "industrial carpeting"

Moby Thesaurus II by Grady Ward, 1.0:

20 Moby Thesaurus words for "industrial":
   business, commercial, creational, executional, fabricational,
   formational, functional, manufacturing, mercantile, merchant,
   official, pro, productional, professional, retail, technical,
   trade, trading, vocational, wholesale