stypt- +

(Greek: astringent [from the verb styphein, "to contract, to be astringent")

mechanical styptic
1. Any hemostatic device, or material, that facilitates coagulation of bleeding vessels.
2. A mechanical styptic which assists the clotting of blood by mechanical means.
1. The ability to contract or to draw together soft body tissues to stop blood flow or restrict secretion of fluids.
2. Astringency or the use of an astringent (causing the contraction of body tissues).
3. Astringency; astringent action (a substance or preparation; such as, alum, that draws together or constricts body tissues and is effective in stopping the flow of blood or other secretions).
styptic collodion
Tannic acid in flexible collodion; an astringent and local hemostatic.
styptic pencil
1. An astringent substance in solid form in a small cylindrical container that is applied to stop bleeding from small cuts; for example, after shaving.
2. A short medicated stick, often of alum, applied to a cut to check bleeding.
styptic, hemostyptic
1. A drug that causes contraction of body tissues and canals.
2. Tending to check bleeding by contracting the tissues or blood vessels.
3. Slowing down the rate of bleeding, or stopping bleeding altogether; whether by causing the blood vessels to contract or by accelerating clotting.
4. Anything that stops a hemorrhage; such as, alum, ferrous sulfate, or tannic acid.
1. The quality or state of being styptic; astringency.
2. Possessing astringent qualities.
vascular styptic
A styptic material that slows down, or stops, hemorrhage by acting as a vasoconstrictor on blood vessels of relatively small size.

A vasoconstrictor is an agent that narrows the blood vessels, which in turn increases resistance to blood flow and raises blood pressure.