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

shrinking \shrink"ing\,
   a.  n. from shrink.
   1913 webster

   shrinking head founding, a body of molten metal connected
      with a mold for the purpose of supplying metal to
      compensate for the shrinkage of the casting; -- called
      also sinking head, and riser.
      1913 webster
see also:
shrink shrinking head sinking head riser 

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

riser \ris"er\, n.
   1. one who rises; as, an early riser.
      1913 webster

   2. arch.
      a the upright piece of a step, from tread to tread.
          hence:
      b any small upright face, as of a seat, platform,
          veranda, or the like.
          1913 webster

   3. mining a shaft excavated from below upward.
      1913 webster

   4. founding a feed head. see under feed, n.
      1913 webster
see also:
feed 

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

feed \feed\, n.
   1. that which is eaten; esp., food for beasts; fodder;
      pasture; hay; grain, ground or whole; as, the best feed
      for sheep.
      1913 webster

   2. a grazing or pasture ground. --shak.
      1913 webster

   3. an allowance of provender given to a horse, cow, etc.; a
      meal; as, a feed of corn or oats.
      1913 webster

   4. a meal, or the act of eating. r.
      1913 webster

            for such pleasure till that hour
            at feed or fountain never had i found. --milton.
      1913 webster

   5. the water supplied to steam boilers.
      1913 webster

   6. mach.
      a the motion, or act, of carrying forward the stuff to
          be operated upon, as cloth to the needle in a sewing
          machine; or of producing progressive operation upon
          any material or object in a machine, as, in a turning
          lathe, by moving the cutting tool along or in the
          work.
      b the supply of material to a machine, as water to a
          steam boiler, coal to a furnace, or grain to a run of
          stones.
      c the mechanism by which the action of feeding is
          produced; a feed motion.
          1913 webster

   feed bag, a nose bag containing feed for a horse or mule.
      

   feed cloth, an apron for leading cotton, wool, or other
      fiber, into a machine, as for carding, etc.

   feed door, a door to a furnace, by which to supply coal.

   feed head.
      a a cistern for feeding water by gravity to a steam
          boiler.
      b founding an excess of metal above a mold, which
          serves to render the casting more compact by its
          pressure; -- also called a riser, deadhead, or
          simply feed or head --knight.

   feed heater.
      a steam engine a vessel in which the feed water for
          the boiler is heated, usually by exhaust steam.
      b a boiler or kettle in which is heated food for stock.
          

   feed motion, or feed gear mach., the train of mechanism
      that gives motion to the part that directly produces the
      feed in a machine.

   feed pipe, a pipe for supplying the boiler of a steam
      engine, etc., with water.

   feed pump, a force pump for supplying water to a steam
      boiler, etc.

   feed regulator, a device for graduating the operation of a
      feeder. --knight.

   feed screw, in lathes, a long screw employed to impart a
      regular motion to a tool rest or tool, or to the work.

   feed water, water supplied to a steam boiler, etc.

   feed wheel mach., a kind of feeder. see feeder, n., 8.
      1913 webster
see also:
feed bag feed cloth feed door feed head riser deadhead 
feed head feed heater feed motion feed gear 
feed pipe feed pump feed regulator feed screw feed water 
feed wheel feeder 

[4] : WordNet (r) 2.0

riser
     n 1: a person who rises especially from bed; "he's usually a
          late riser"
     2: a vertical pipe in a building syn: riser pipe, riser
        pipeline, riser main
     3: structural member consisting of the vertical part of a stair
        or step
see also:
riser pipe riser pipeline riser main 

Riser >> R Words
Riser, definition of term: Riser
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