- Type of:
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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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alkaloid
natural bases containing nitrogen found in plants
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phytotoxin, plant toxin
any substance produced by plants that is similar in its properties to extracellular bacterial toxin
