Source : Webster's Revised Unabridged Dictionary (1913)

Mechanic \Me*chan"ic\, n. [F. m['e]canique mechanics. See
   {Mechanic}, a.]
   1. The art of the application of the laws of motion or force
      to construction. [Obs.]

   2. A mechanician; an artisan; an artificer; one who practices
      any mechanic art; one skilled or employed in shaping and
      uniting materials, as wood, metal, etc., into any kind of
      structure, machine, or other object, requiring the use of
      tools, or instruments.

            An art quite lost with our mechanics. --Sir T.
                                                  Browne.

Mechanic \Me*chan"ic\, a. [F. m['e]canique, L. mechanicus, Gr.
   ?, fr. ? a machine. See {Machine}.]
   1. Having to do with the application of the laws of motion in
      the art of constructing or making things; of or pertaining
      to mechanics; mechanical; as, the mechanic arts. ``These
      mechanic philosophers.'' --Ray.

            Mechanic slaves, With greasy aprons, rules, and
            hammers.                              --Shak.

   2. Of or pertaining to a mechanic or artificer, or to the
      class of artisans; hence, rude; common; vulgar.

            To make a god, a hero, or a king Descend to a
            mechanic dialect.                     --Roscommon.

            Sometimes he ply'd the strong, mechanic tool.
                                                  --Thomson.

   3. Base. [Obs.] --Whitlock.

Source : WordNet®

mechanic
     adj : resembling the action of a machine; "from blank to blank a
           threadless way I pushed mechanic feet"- Emily Dickenson

mechanic
     n 1: a craftsman skilled in operating machine tools [syn: {machinist},
           {shop mechanic}]
     2: someone whose occupation is repairing and maintaining
        automobiles [syn: {automobile mechanic}, {auto-mechanic},
        {car-mechanic}, {grease monkey}]