\Sta"tion*a*ry\, a. [L. stationarius: cf. F.
stationnaire. Cf. {Stationer}.]
1. Not moving; not appearing to move; stable; fixed.
         Charles Wesley, who is a more stationary man, does
         not believe the story.                --Southey.
2. Not improving or getting worse; not growing wiser,
   greater, better, more excellent, or the contrary.
3. Appearing to be at rest, because moving in the line of
   vision; not progressive or retrograde, as a planet.
{Stationary air} (Physiol.), the air which under ordinary
   circumstances does not leave the lungs in respiration.
{Stationary engine}.
   (a) A steam engine thet 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.

\Sta"tion*a*ry\, n.; pl. {-ries}.
One who, or that which, is stationary, as a planet when
apparently it has neither progressive nor retrograde motion.
--Holland.