generic block recording system
abbreviation 1. George Bernard Shaw George Bernard Shaw
noun, Physics. 1. the principle that the total electric flux of a closed surface in an electric field is equal to 4π times the electric charge inside the surface.
noun, Mathematics. 1. a complex number of the form a + bi where a and b are integers.
noun, Optics. 1. the point in an optical system with spherical aberration at which the paraxial rays meet.