diff - disc
- differ in phase
- difference amplifier
- difference check
- difference current
- difference equation
- difference frequency
- difference frequency generation
- difference in brightness
- difference in phase
- difference in pressure
- difference limen
- difference of hue
- difference of phase
- difference of potential
- difference quotient
- difference threshold
- difference tone
- difference voltage
- differentiable function
- differential
- differential amplifier
- differential analyzer
- differential anode resistance
- differential arc lamp
- differential arrangement
- differential booster
- differential bridge
- differential capacitance
- differential capacitance of the double layer
- differential capacitor
- differential cascode voltage switch logic
- differential characteristic impedance
- differential coefficient
- differential colorimeter
- differential compound excitation
- differential compound winding
- differential compound-wound dynamo
- differential compound-wound motor
- differential connection
- differential current
