Vasodilator

noun

Definitions

Noun
  1. 1
    A substance that causes dilation of the blood vessels, thereby reducing blood pressure; it may be endogenous (such as a hormone produced by the body) or exogenous (such as a drug or other chemical agent).
  2. 2
    a drug that causes dilation of blood vessels wordnet

Etymology

From vaso- + dilator.

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