the desired value in a closed-loop feedback system, as in regulation of temperature or pressure.
the point at which a thermostat has been set, as for optimum efficiency.
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. Compare homeostasis.
a hypothetical regulator in the body that maintains a relatively stable body weight.
the weight range thus theoretically maintained.
Also, set point.

set + point Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Example sentences
Merely raising the setpoint temperature to avoid a heater trip is not an
  acceptable solution.
The investigation has revealed that the setpoint changes may have been present.
The setpoint drift was not recognized because the switches are scheduled for
  their periodic calibration annually.
Setpoint drift is the result of many random variables and is usually considered
  a function of time since calibration and setting.
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