VASOCONSTRICTOR—An agent that constricts the blood vessels.
VASODILATOR—An agent that dilates the blood vessels.
VERMICIDE—A drug that expels worms without necessarily killing them.
VESICANT—A blistering drug or agent.
VESICATION—The process of blistering.
VESICLE—A small blister.
VIRULENCE—The degree of pathogenicity of a microorganism or its ability to
invade the tissues of the host.
WATERS—Aqueous solutions of volatile substances.
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AV-12
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