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Answer for the clue "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 ", 15 letters:
vasoconstrictor

Alternative clues for the word vasoconstrictor

Word definitions for vasoconstrictor in dictionaries

WordNet Word definitions in WordNet
n. 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 [syn: vasoconstrictive ]

Wiktionary Word definitions in Wiktionary
n. (context medicine English) Any substance that causes vasoconstriction

The Collaborative International Dictionary Word definitions in The Collaborative International Dictionary
Vasoconstrictor \Vas`o*con*strict"or\, a. (Physiol.) 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 .

Usage examples of vasoconstrictor.

Cocaine is a vasoconstrictor and bronchodilator - it reduces blood flow to vessels near the surface of the skin and opens up the breathing passages.

It was a simple thing, a coded beat of high-frequency pulses that would turn the bugs in Anne’s head into little factories, flooding her brain with vasoconstrictors, creating millions of tiny aneurisms.