(physics) A powerful compression wave produced by the movement of a body through a fluid or gas at a velocity greater than the local speed of sound. / Any violent disturbance.

(mechanical engineering) A mechanical device designed to smooth out or damp any sudden shock impulse and dissipate kinetic energy; usually consists of a combination of a spring and a dashpot.

(astronomy) The boundary marking one of the outer limits of the Sun's influence, where the solar wind dramatically slows. / (by extension, astronomy) That point for space around any star.

(idiomatic, chiefly US) Disgust, shock, or fright upon learning the price of an item offered for sale.

(pathology) A life-threatening condition caused by infection and sepsis, often after surgery or trauma.

(slang) A deliberately offensive or provocative talk show host.

Shock caused by extreme excitability of the parasympathetic nervous system. This hyperexcitability is caused by severe pain and results in an extreme slowing of heartbeat and pulse, leading to a dangerous drop in blood pressure and hence shock.

A severe and rapid systemic allergic reaction to an allergen, constricting the trachea and causing generalized vasodilation.

plural of shock site

(fluid dynamics) A shock wave formed by the bow of an object travelling at supersonic speed. / (astronomy) The region of the magnetosphere in which the solar wind slows from supersonic to subsonic.