POINT n.
A fixed conventional place for reference, or zero of reckoning, in the heavens, usually the intersection of two or more great circles of the sphere, and named specifically in each case according to the position intended; as, the equinoctial points; the solstitial points; the nodal points; vertical points, etc. See Equi…
PRESSURE n.
orce; a force in the nature of a thrust, distributed over a surface, often estimated with reference to the upon a unit's area. Atmospheric pressure, Center of pressure, etc. See under Atmospheric, Center, etc. -- Back pressure (Steam engine), pressure which resists the motion of the piston, as the pressure of exhaust…