diff - dire
- difference
- differential
- differential amplifier
- differential anode resistance
- differential attenuation
- differential attenuator
- differential bridge
- differential calculus
- differential compound winding
- differential connection
- differential current amplifier
- differential excitation
- differential gain
- differential gain control
- differential galvanometer
- differential input
- differential input impedance
- differential input signal
- differential modulation
- differential multiplexer-demultiplexer
- differential phase modulation
- differential protective system
- differential relay
- differential resistor
- differential voltage
- differentiating circuit
- differentiating filter
- differentiating network
- differentiator
- diffracting edge
- diffraction
- diffraction attenuation
- diffraction edge
- diffraction fringe
- diffraction loss
- diffraction pattern
- diffraction region
- diffuse
- diffuse reflectance
- diffused lens package
