set point

US: (set′point′)

WordReference Random House Unabridged Dictionary of American English © 2025

set′ point′, 

1. [Tennis.] the point that if won would enable the scorer or his or her side to win the set.
2. setpoint.
• 1925–30

set•point  (set′point′), n. 

1. Physiology the desired value in a closed-loop feedback system, as in regulation of temperature or pressure.
2. the point at which a thermostat has been set, as for optimum efficiency.
3. Physiology an internal regulatory system for maintaining a relatively stable physiological condition in the face of changing external circumstances, as body temperature in a varying climate. Cf. homeostasis. 
4. a hypothetical regulator in the body that maintains a relatively stable body weight.
5. the weight range thus theoretically maintained.

Also, set point. 

• set + point