VASOCONSTRICTOR

vasoconstrictor, vasoconstrictive, pressor

(noun) any agent that causes a narrowing of an opening of a blood vessel: cold or stress or nicotine or epinephrine or norepinephrine or angiotensin or vasopressin or certain drugs; maintains or increases blood pressure

Source: WordNet® 3.1

Etymology

Noun

vasoconstrictor (plural vasoconstrictors)

(pharmacology) Any substance that causes vasoconstriction.

Source: Wiktionary

Vas`o*con*strict"or, a. (Physiol.)

Definition: Causing constriction of the blood vessels; as, the vasoconstrictor nerves, stimulation of which causes constriction of the blood vessels to which they go. These nerves are also called vasohypertonic. n.

Definition: A substance which causes constriction of the blood vessels. Such substances are used in medicine to raise blood pressure.

Source: Webster’s Unabridged Dictionary 1913 Edition