[1] : The Collaborative International Dictionary of English v.0.48

rolling \roll"ing\, a.
   1. rotating on an axis, or moving along a surface by
      rotation; turning over and over as if on an axis or a
      pivot; as, a rolling wheel or ball.
      1913 webster

   2. moving on wheels or rollers, or as if on wheels or
      rollers; as, a rolling chair.
      1913 webster

   3. having gradual, rounded undulations of surface; as, a
      rolling country; rolling land. u.s.
      1913 webster

   rolling bridge. see the note under drawbridge.

   rolling circle of a paddle wheel, the circle described by
      the point whose velocity equals the velocity of the ship.
      --j. bourne.

   rolling fire mil., a discharge of firearms by soldiers in
      line, in quick succession, and in the order in which they
      stand.

   rolling friction, that resistance to motion experienced by
      one body rolling upon another which arises from the
      roughness or other quality of the surfaces in contact.

   rolling mill, a mill furnished with heavy rolls, between
      which heated metal is passed, to form it into sheets,
      rails, etc.

   rolling press.
      a a machine for calendering cloth by pressure between
          revolving rollers.
      b a printing press with a roller, used in copperplate
          printing.

   rolling stock, or rolling plant, the locomotives and
      vehicles of a railway.

   rolling tackle naut., tackle used to steady the yards
      when the ship rolls heavily. --r. h. dana, jr.
      1913 webster
see also:
rolling bridge drawbridge rolling circle of a paddle wheel rolling fire rolling friction rolling mill 
rolling press rolling stock rolling plant rolling tackle 

[2] : WordNet (r) 2.0

rolling stock
     n : collection of wheeled vehicles owned by a railroad or motor
         carrier

[3] : Moby Thesaurus II by Grady Ward, 1.0

40 moby thesaurus words for "rolling stock":
   amtrak, baggage train, cable railroad, choo-choo, cog railroad,
   cog railway, el, electric, electric train, elevated, express,
   express train, flier, freight, freight train, freighter, funicular,
   goods train, interurban, lightning express, limited, local, metro,
   milk train, monorail, parliamentary, parliamentary train,
   passenger train, rack-and-pinion railroad, railroad train, rattler,
   shuttle, shuttle train, special, streamliner, subway, train, tube,
   underground, way train

Penny Stock >> P Words
Penny Stock, definition of term: Penny Stock
penny+stock_pag1.html

Preferred Stock >> P Words
Preferred Stock, definition of term: Preferred Stock
preferred+stock_pag1.html

Live Stock >> L Words
Live Stock, definition of term: Live Stock
live+stock_pag1.html

Get Rolling >> G Words
Get Rolling, definition of term: Get Rolling
get+rolling_pag1.html

Capital Stock >> C Words
Capital Stock, definition of term: Capital Stock
capital+stock_pag1.html

Common Stock >> C Words
Common Stock, definition of term: Common Stock
common+stock_pag1.html

American Stock >> A Words
American Stock, definition of term: American Stock
american+stock_pag1.html

Joint Stock Com >> J Words
Joint Stock Com, definition of term: Joint Stock Com
joint+stock+com_pag1.html