die- - dose
- directional radiation pattern
- directional rate
- directional recrystallization
- directional relay
- directional screen
- directional selector lever
- directional signal
- directional stability
- directional survey
- directional switch
- directional trim
- directional trouble
- directional well
- directional [directive] antenna
- directional [directive] radiator
- directional-beam X-ray tube
- directional-overcurrent relay
- directionally solidified alloy
- directive
- directive beam
- directive force
- directive gain
- directive radio beacon
- directive transmission
- directive [directivity] pattern
- directivity
- directivity factor
- directivity index
- directivity signal
- directly coupled (multiprocessor )system
- directly coupled (multiprocessor )system
- directly driven radiator
- directly excited [directly feed] antenna
- directly heated cathode
- directly heated filament
- directly heated thermistor
- directly modulated laser
- directly operated valve
- director
- director cone