Source : Webster's Revised Unabridged Dictionary (1913)

Praxis \Prax"is\, n. [NL., fr. Gr. ?, fr. ? to do. See
   {Practice}.]
   1. Use; practice; especially, exercise or discipline for a
      specific purpose or object. ``The praxis and theory of
      music.'' --Wood.

   2. An example or form of exercise, or a collection of such
      examples, for practice.

Source : WordNet®

praxis
     n : translating an idea into action; "a hard theory to put into
         practice"; "differences between theory and praxis of
         communism" [syn: {practice}]
     [also: {praxes} (pl)]