(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.

(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.

(anthropology, sociology) A state of anxious confusion experienced by someone exposed to an alien or unfamiliar environment.

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

A website intended to offend or shock, containing frightening and/or distasteful content of a pornographic, scatological, or grotesquely violent nature. In most cases, it displays a particular picture most prominently; some shock sites also show animations or image galleries.

plural of shock site

(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.

(philosophy) The state of being forced to question one's worldview.

An instance of subjecting (someone or something) to an electric shock. / The physical reaction or shock caused by the flow of electricity through the body.

A particular type of microphone mount in which the microphone is suspended by elastic, and so is partially isolated from vibrations that might otherwise be better transmitted to the microphone through the mic stand, causing unwanted sounds to be added to the output signal.