Bernoulli’s principle

Equivalent to the principle of conservation of energy, this principle states that the static pressure of a fluid (liquid or gas) decreases at points where the velocity of the fluid increases, provided no energy is added to or taken away from the fluid.

Aviation Maintenance Technician Handbook — General, p. G-2

Also defined in 3 more sources

The basic principle that explains the relation between kinetic energy and potential energy in fluids that are in motion. When the total energy in a column of moving fluid remains constant, any increase in the kinetic energy of the fluid (its velocity) results in a corresponding decrease in its potential energy (its pressure).

Aviation Maintenance Technician Handbook — Airframe, p. G-5

A physical principle that explains the relationship between kinetic and potential energy in a stream of moving fluid. When energy is neither added to nor taken from the fluid, any increase in its velocity (kinetic energy) will result in a corresponding decrease in its pressure (potential energy).

Aviation Maintenance Technician Handbook — Powerplant, p. G-4

A principle that explains how the pressure of a moving fluid varies with its speed of motion. An increase in the speed of movement causes a decrease in the fluid’s pressure.

Pilot's Handbook of Aeronautical Knowledge, p. G-5

Taught in GEN-J Quick reference.