The Collaborative International Dictionary of English v.0.48:

Stationary \Sta"tion*a*ry\ (-[asl]*r[y^]), a. [L. stationarius:
   cf. F. stationnaire. Cf. Stationer.]
   1. Not moving; not appearing to move; stable; fixed.
      [1913 Webster]

            Charles Wesley, who is a more stationary man, does
            not believe the story.                --Southey.
      [1913 Webster]

   2. Not improving or getting worse; not growing wiser,
      greater, better, more excellent, or the contrary.
      [1913 Webster]

   3. Appearing to be at rest, because moving in the line of
      vision; not progressive or retrograde, as a planet.
      [1913 Webster]

   Stationary air (Physiol.), the air which under ordinary
      circumstances does not leave the lungs in respiration.

   Stationary engine.
      (a) A steam engine that is permanently placed, in
          distinction from a portable engine, locomotive, marine
          engine, etc. Specifically:
      (b) A factory engine, in distinction from a blowing,
          pumping, or other kind of engine which is also
          permanently placed.
          [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Stationary \Sta"tion*a*ry\, n.; pl. -ries (-r[i^]z).
   One who, or that which, is stationary, as a planet when
   apparently it has neither progressive nor retrograde motion.
   --Holland.
   [1913 Webster]

WordNet (r) 3.0 (2006):

stationary
    adj 1: standing still; "the car remained stationary with the
           engine running"
    2: not capable of being moved; "stationary machinery"