vasohypotonic


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vasodilator

 [vas″o-di-la´tor]
1. causing dilation of blood vessels.
2. a nerve or agent that has this effect.

va·so·hy·po·ton·ic

(vā'sō-hī'pō-ton'ik)
Relating to reduced arteriolar tension or vasodilation.
[vaso- + G. hypo, under, + tonos, tone]