triple point noun6 •The unique temperature and pressure at which the solid, liquid and gas phases of a substance are all in equilibrium.A solid sublimes only when the pressure of its vapor is below that of the triple point for that substance. — 2006 •A point where the incident shock wave, the reflected shock wave, the Mach stem, and one slipstream meet.A triple point may have a convex Mach stem, in which case the SS points upward. — 2012 •A point where a curve or surface intersects itself along three arcs.The number of the distinguished edges whose orientations point towards the triple point is exactly one, or exactly two. — 1998 •The intersection of an occluded front, cold front, and warm front....together at the point of occlusion, or triple point, where conditions are favorable for formation of a new cyclone, sometimes called a secondary cyclone. — 2002 •The point where two boundaries, such as a dry line, outflow boundary, or cold front, intersect.It is concluded that the severe storms formed in close proximity to a "triple point" (TP), at which a synoptic cold front and "insolation-enhanced" warm front intersected. — 2006 •A point where three plates intersect.Such a 'piecrust model' has been used to explain the generation of triple points which can give rise to splitting of a continental body. — 2003 formstriple points
