dot - dyna
- dot
- dot cycle
- dot interlace
- dot matrix
- dot speed
- dot-and-dash
- dot-character printer
- dot-element image
- dot-matrix printer
- dot-sequential color television
- dot-sequential transmission
- dot-type screen
- double bridge
- double busbar
- double bushing
- double FM
- double half-period rectifier
- double half-wave circuit
- double half-wave detector
- double heterodyning
- double heterostructure
- double hops
- double image
- double imaging
- double limiter
- double local oscillator
- double magnetic shield
- double pair twisting
- double pole circuit method
- double protection
- double pump
- double pumping
- double registration undulator
- double reservation
- double self-protection
- double talk
- double-amplitude modulation multiplier
- double-area detector
- double-balanced transmitter
- double-band antenna
