Definition of overpressure in English:

overpressure

noun

  • 1Specifically. Fluid or gas pressure in excess of that which is normal or allowed for; an instance of this.

  • 2Physics. The difference between the (highest) instantaneous pressure at a point subjected to a shock wave and the ambient atmospheric pressure.

Origin

Mid 17th century (in an earlier sense). From over- + pressure.

Pronunciation

overpressure

/ˌəʊvəˈprɛʃə/