Pascal’s Law
The law that states that pressure applied anywhere to a body of fluid causes a force to be transmitted equally in all directions; the force acts at right angles to any surface in contact with the fluid.
Also defined in 1 more source
A basic law of fluid power which states that the pressure in an enclosed container is transmitted equally and undiminished to all points of the container, and the force acts at right angles to the enclosing walls.
Aviation Maintenance Technician Handbook — Airframe, p. G-25
Taught in GEN-J Quick reference.