Roller skate

roller skate
    n 1: a shoe with pairs of rollers fixed to the sole
    v 1: travel on shoes with steel or rubber rollers attached to
         their soles; "In some fashionable restaurants, the waiters
         roller skate around"
    

Skate \Skate\ (sk[=a]t), n. [D. schaats. Cf. {Scatches}.]
   A metallic runner with a frame shaped to fit the sole of a
   shoe, -- made to be fastened under the foot, and used for
   moving rapidly on ice.
   [1913 Webster]

         Batavia rushes forth; and as they sweep,
         On sounding skates, a thousand different ways,
         In circling poise, swift as the winds, along,
         The then gay land is maddened all to joy. --Thomson.
   [1913 Webster]

   {Roller skate}. See under {Roller}.
      [1913 Webster]
    

   10. (Zool.) Any species of small ground snakes of the family
       {Tortricidae}.
       [1913 Webster]

   {Ground roller} (Zool.), any one of several species of
      Madagascar rollers belonging to {Atelornis} and allied
      genera. They are nocturnal birds, and feed on the ground.
      

   {Roller bolt}, the bar in a carriage to which the traces are
      attached; a whiffletree. [Eng.]

   {Roller gin}, a cotton gin inn which rolls are used for
      separating the seeds from the fiber.

   {Roller mill}. See under {Mill}.

   {Roller skate}, a skate which has small wheels in the place
      of the metallic runner; -- designed for use in skating
      upon a smooth, hard surface, other than ice.
      [1913 Webster]
    

Roller skate \Roll"er skate\
   1. a shoe with a set of wheels attached so that the wearer
      can glide over a flat surface. To move on such a device is
      reverred to as to skate or to rollerskate. To rollerskate
      is a form of recreation or sport.
      [PJC]

   2. a metal frame of the size of a shoe, with a set of wheels
      attached, and with adjustable clamps and straps that
      permit a shoe to be reversibly fastened to the frame. It
      serves the same purpose as the roller skate having the
      shoe permanently attached, but is typically less
      expensive.
      [PJC]
    

21 Moby Thesaurus words for "roller skate":
      coast, flit, flow, fly, glide, glissade, ice-skate, sail, sideslip,
      skate, skateboard, ski, skid, skim, sled, sleigh, slide, slip,
      slither, sweep, toboggan