| vas | 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 |
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| vas | 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 |
| vas | dilation of blood vessels (especially the arteries) |
| vas | a drug that causes dilation of blood vessels |
| vas | a drug that causes dilation of blood vessels |
| vas | a virility drug (trade name Vasomax) to treat erectile dysfunction in men |
| vas | relating to the nerves and muscles that cause the blood vessels to constrict or dilate |
| vas | hormone secreted by the posterior pituitary gland (trade name Pitressin) and also by nerve endings in the hypothalamus |
| vas | any agent that produces vasoconstriction and a rise in blood pressure (usually understood as increased arterial pressure) |
| vas | surgical incision into or division of the vas deferens |
| vas | an ACE inhibitor (trade name Vasotec) that blocks the formation of angiotensin in the kidney and so results in vasodilation |
| vas | surgical incision into or division of the vas deferens |