Source : Webster's Revised Unabridged Dictionary (1913)

Shaker \Shak"er\, n.
   1. A person or thing that shakes, or by means of which
      something is shaken.

   2. One of a religious sect who do not marry, popularly so
      called from the movements of the members in dancing, which
      forms a part of their worship.

   Note: The sect originated in England in 1747, and came to the
         United States in 1774, under the leadership of Mother
         Ann Lee. The Shakers are sometimes nicknamed Shaking
         Quakers, but they differ from the Quakers in doctrine
         and practice. They style themselves the ``United
         Society of Believers in Christ's Second Appearing.''
         The sect is now confined in the United States.

   3. (Zo["o]l.) A variety of pigeon. --P. J. Selby.

Source : WordNet®

shaker
     n 1: a person who wields power and influence; "a shaker of
          traditional beliefs"; "movers and shakers in the
          business world" [syn: {mover and shaker}]
     2: a member of Christian group practicing celibacy and communal
        living and common possession of property and separation
        from the world
     3: a container in which something can be shaken