[1] : The Collaborative International Dictionary of English v.0.48

vasomotor \vas`omo"tor\, a. l. vas a vessel + motor that which
   moves fr. movere to move. physiol.
   causing movement in the walls of vessels; as, the vasomotor
   mechanisms; the vasomotor nerves, a system of nerves
   distributed over the muscular coats of the blood vessels.
   1913 webster

   vasomotor center, the chief dominating or general center
      which supplies all the unstriped muscles of the arterial
      system with motor nerves, situated in a part of the
      medulla oblongata; a center of reflex action by the
      working of which afferent impulses are changed into
      efferent, -- vasomotor impulses leading either to dilation
      or constriction of the blood vessels.
      1913 webster
see also:
vasomotor center 

[2] : WordNet (r) 2.0

vasomotor
     adj : relating to the nerves and muscles that cause the blood
           vessels to constrict or dilate

Vasomotor >> V Words
Vasomotor, definition of term: Vasomotor
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