Saw whetter

Saw \Saw\, n. [OE. sawe, AS. sage; akin to D. zaag, G. s[aum]ge,
   OHG. sega, saga, Dan. sav, Sw. s[*a]g, Icel. s["o]g, L.
   secare to cut, securis ax, secula sickle. Cf. {Scythe},
   {Sickle}, {Section}, {Sedge}.]
   An instrument for cutting or dividing substances, as wood,
   iron, etc., consisting of a thin blade, or plate, of steel,
   with a series of sharp teeth on the edge, which remove
   successive portions of the material by cutting and tearing.
   [1913 Webster]

   Note: Saw is frequently used adjectively, or as the first
         part of a compound.
         [1913 Webster]

   {Band saw}, {Crosscut saw}, etc. See under {Band},
      {Crosscut}, etc.

   {Circular saw}, a disk of steel with saw teeth upon its
      periphery, and revolved on an arbor.

   {Saw bench}, a bench or table with a flat top for for sawing,
      especially with a circular saw which projects above the
      table.

   {Saw file}, a three-cornered file, such as is used for
      sharpening saw teeth.

   {Saw frame}, the frame or sash in a sawmill, in which the
      saw, or gang of saws, is held.

   {Saw gate}, a saw frame.

   {Saw gin}, the form of cotton gin invented by Eli Whitney, in
      which the cotton fibers are drawn, by the teeth of a set
      of revolving circular saws, through a wire grating which
      is too fine for the seeds to pass.

   {Saw grass} (Bot.), any one of certain cyperaceous plants
      having the edges of the leaves set with minute sharp
      teeth, especially the {Cladium Mariscus} of Europe, and
      the {Cladium effusum} of the Southern United States. Cf.
      {Razor grass}, under {Razor}.

   {Saw log}, a log of suitable size for sawing into lumber.

   {Saw mandrel}, a mandrel on which a circular saw is fastened
      for running.

   {Saw pit}, a pit over which timbor is sawed by two men, one
      standing below the timber and the other above. --Mortimer.

   {Saw sharpener} (Zool.), the great titmouse; -- so named from
      its harsh call note. [Prov. Eng.]

   {Saw whetter} (Zool.), the marsh titmouse ({Parus
      palustris}); -- so named from its call note. [Prov. Eng.]
      

   {Scroll saw}, a ribbon of steel with saw teeth upon one edge,
      stretched in a frame and adapted for sawing curved
      outlines; also, a machine in which such a saw is worked by
      foot or power.
      [1913 Webster]