va·so·mo·tor /ˌvezəˈmotɚ/
 (a.)血管收縮的,血管收縮神經的
 va·so·mo·tor /ˌvezoˈmotɚ/ 形容詞
 血管舒縮的,血管舒縮藥
 Vas·o·mo·tor a.  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.
 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.
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 vasomotor
      adj : relating to the nerves and muscles that cause the blood
            vessels to constrict or dilate