angiotensin

an·gi·o·ten·sin  (nj--tnsn)

n.

Any of three polypeptide hormones, one of which is a powerful vasoconstrictor, that function in the body in controlling arterial pressure.

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[angio- + tens(ion) + -in.]

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angiotensin  (nj--tnsn)

Any of three polypeptide hormones that function in the body in controlling arterial pressure. The most important is known as angiotensin II, a powerful vasoconstrictor that stimulates steroid production by the adrenal glands, reduces fluid loss from the kidneys, and also functions as a neurotransmitter. Angiotensin II is formed from inactive angiotensin I by the action of angiotensin-converting enzyme (or ACE). See also ACE inhibitorrenin

Thesaurus

Noun

1.

angiotensin - any of several vasoconstrictor substances (trade name Hypertensin) that cause narrowing of blood vessels angiotonin, Hypertensin 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