Source : Webster's Revised Unabridged Dictionary (1913)

Roll \Roll\, v. t. [imp. & p. p. {Rolled}; p. pr. & vb. n.
   {Rolling}.] [OF. roeler, roler, F. rouler, LL. rotulare, fr.
   L. royulus, rotula, a little wheel, dim. of rota wheel; akin
   to G. rad, and to Skr. ratha car, chariot. Cf. {Control},
   {Roll}, n., {Rotary}.]
   1. To cause to revolve by turning over and over; to move by
      turning on an axis; to impel forward by causing to turn
      over and over on a supporting surface; as, to roll a
      wheel, a ball, or a barrel.

   2. To wrap round on itself; to form into a spherical or
      cylindrical body by causing to turn over and over; as, to
      roll a sheet of paper; to roll parchment; to roll clay or
      putty into a ball.

   3. To bind or involve by winding, as in a bandage; to inwrap;
      -- often with up; as, to roll up a parcel.

   4. To drive or impel forward with an easy motion, as of
      rolling; as, a river rolls its waters to the ocean.

            The flood of Catholic reaction was rolled over
            Europe.                               --J. A.
                                                  Symonds.

   5. To utter copiously, esp. with sounding words; to utter
      with a deep sound; -- often with forth, or out; as, to
      roll forth some one's praises; to roll out sentences.

            Who roll'd the psalm to wintry skies. --Tennyson.

   6. To press or level with a roller; to spread or form with a
      roll, roller, or rollers; as, to roll a field; to roll
      paste; to roll steel rails, etc.

   7. To move, or cause to be moved, upon, or by means of,
      rollers or small wheels.

   8. To beat with rapid, continuous strokes, as a drum; to
      sound a roll upon.

   9. (Geom.) To apply (one line or surface) to another without
      slipping; to bring all the parts of (one line or surface)
      into successive contact with another, in suck manner that
      at every instant the parts that have been in contact are
      equal.

   10. To turn over in one's mind; to revolve.

             Full oft in heart he rolleth up and down The beauty
             of these florins new and bright.     --Chaucer.

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.

   2. Moving on wheels or rollers, or as if on wheels or
      rollers; as, a rolling chair.

   3. Having gradual, rounded undulations of surface; as, a
      rolling country; rolling land. [U.S.]

   {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.

Source : WordNet®

rolling
     adj 1: characterized by reverberation; "a resonant voice"; "hear
            the rolling thunder" [syn: {resonant}, {resonating}, {resounding},
             {reverberating}, {reverberative}]
     2: uttered with a trill; "she used rolling r's as in Spanish"
        [syn: {rolled}, {trilled}]
     3: moving in surges and billows and rolls; "billowing smoke
        from burning houses"; "the rolling fog"; "the rolling
        sea"; "the tumbling water of the rapids" [syn: {billowing},
         {tumbling}]

rolling
     n 1: a deep prolonged sound (as of thunder or large bells) [syn:
          {peal}, {pealing}, {roll}]
     2: the act of robbing a helpless person; "he was charged with
        rolling drunks in the park"
     3: propelling something on wheels [syn: {wheeling}]