vasoconstriction

n. narrowing of blood vessels, which is controlled by vasomotor nerves of the sympathetic nervous system or by such agents as vasopressin or sympathomimetic drugs. It has the effect of increasing blood pressure. See also ergot derivative.

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Psychology term of the day

July 27th 2024

Mensa

n. an organization of individuals whose sole admission requirement is an IQ in the upper 2% of the population.