- destination code
- destructive interference
- destructive test
- destructure
- desulphuration
- desulphurize
- detachable
- detachable plugboard
- detaching
- detail file
- detail price
- details
- detecting valve
- detection radar
- detector cell
- detent mechanism
- detention pond
- detergent oil
- deterioration
- deterrent
- detersive
- detonating
- detonating combustion
- detonation wave
- detour
- detrimental resistance
- detrital lime
- detrited
- detritus pit
- deuterogenous
- developable
- developed view
- developing
- development
- development plan
- development system
- development well
- deviate
- deviation
- deviation compensator
- deviation distortion
- deviation sensitivity
- deviations
- deviator
- device allocation
- device class
- device cluster
- device contention
- device description
- device type
- deviser
- devitrify
- dew
- dewar vessel
- dewatering
- dewatering gallery
- dewatering outlet
- dewatering roll
- dewax
- dextraural
- dextrorotatory
- diabase
- diaclase
- diaconum
- diacritic
- diacritical
- diacritical marks
- diafoam
- diagnostic program
- diagnostic software
- diagnostics
- diagonal
- diagonal bracing
- diagonal lattice
- diagonal matrix
- diagonal pitch
- diagonal reinforcement
- diagonal scale
- diagonal strut
- diagonally
- diagram
- diagrammatic
- diagrammatic map
- diagraph
- dial bridge
- dial exchange
- dial gauge
- dial instrument
- dial line
- dial pointer
- dial tone
- dial trunk
- dial-in
- dialectical logic
- dialectician
- dialing directory
- dialing pulse
- dialing step
- dialkene
- dialling