vasospasm

Spasmodic contracture of the smooth muscle enveloping blood vessels, generally restricting blood flow through the vessel (generally arteriole or small artery) & increasing local peripheral vascular resistance.

Specific

cerebral vasospasm Prinzmetal's angina; variant angina; coronary vasospasm

General

smooth muscle spasm arterial occlusive disease

References

Stedman's Medical Dictionary 27th ed, Williams & Wilkins, Baltimore, 1999