triple point

== English == === Noun === triple point (plural triple points) (physics) The unique temperature and pressure at which the solid, liquid and gas phases of a substance are all in equilibrium. (physics) A point where the incident shock wave, the reflected shock wave, the Mach stem, and one slipstream meet. (mathematics) A point where a curve or surface intersects itself along three arcs. (meteorology) The intersection of an occluded front, cold front, and warm front. (meteorology) The point where two boundaries, such as a dry line, outflow boundary, or cold front, intersect. (plate tectonics) A point where three plates intersect. ==== Related terms ==== ==== Translations ====