vasculitis |
inflammation of a blood or lymph vessel. |
vas deferens |
the duct that carries sperm from the testicle to the ejaculatory duct of the penis. |
vase |
an open container of glass, porcelain, pottery, or the like, usu. taller than it is wide, used as an ornament or to hold cut flowers. |
vasectomy |
a surgical operation in which a male's sperm-carrying tube is cut and tied or removed, as a means of birth control. |
Vaseline |
trademark for petrolatum. |
vaso- |
blood vessel. [2 definitions] |
vasoconstriction |
constriction or narrowing of a blood vessel or vessels, as in response to a nerve impulse. |
vasoconstrictor |
a nerve or drug that causes constriction of the blood vessels. [2 definitions] |
vasodilatation |
see "vasodilation." |
vasodilation |
dilation or widening of a blood vessel or vessels, as in response to a nerve impulse. |
vasodilator |
a nerve or drug that causes dilation of the blood vessels. [2 definitions] |
vasoinhibitor |
a drug or other agent that inhibits the action of the vasomotor nerves. |
vasomotor |
controlling the width of blood vessels, as some nerves or certain drugs; causing vasoconstriction or vasodilatation. |
vasopressin |
a hormone secreted by the posterior lobe of the pituitary gland which increases blood pressure by causing capillaries to constrict. |
vasopressor |
causing a rise in blood pressure by constricting the blood vessels. [2 definitions] |
vassal |
in the Middle Ages, one who was granted the use of land in return for allegiance and service to a feudal lord. [2 definitions] |
vassalage |
the state or condition of being a vassal. [2 definitions] |
vast |
immense in size or area. [3 definitions] |
vastly |
to a very great degree; very much. |
vastness |
the great expanse or large spreading out of something. [2 definitions] |
VAT |
abbreviation of "value-added tax," a sales tax paid on the value added to products and services at each stage of manufacturing and distribution. |