angiotonin
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Noun | 1. | angiotonin - any of several vasoconstrictor substances (trade name Hypertensin) that cause narrowing of blood vessels angiotensin I - a physiologically inactive form of angiotensin that is the precursor to angiotensin II angiotensin II - a potent vasopressor agent formed from angiotensin I pressor, vasoconstrictive, vasoconstrictor - 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 |
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