Definition of null-point in English:

null-point

noun

  • 1A point associated with or having the value zero, or at which opposing forces cancel each other out.

  • 2Mechanics Geometry
    The point of intersection of all the null lines of a given torque that lie in a given plane.

Origin

Early 19th century; earliest use found in Samuel Taylor Coleridge (1772–1834), poet, critic, and philosopher.