- dipolar
- dipolar relaxation
- dipole
- dipole moment
- dipole polarization
- Dirac equation
- direct
- direct light
- diffacted wave
- differential threshold
- diffract
- diffracted energy
- diffraction
- diffuse
- diffuser
- diffusing screen
- diffusion coating
- diffusion lernel
- diffusion theory
- diffusive
- digestion apparatus
- directivity pattern
- disable time
- disc mastering
- discharge tube
- discontinuous spectrum
- disk mastering
- dispersal
- disperse
- disperser
- dispersion additives
- dissolve
- distribution-free
- disturb
- discharge line
- discharge measurement
- disconnect fitting
- discontinuity
- dish heater
- dished head
- displacement spike
- dissecting scissors
- dissection needle
- distance scale
- dither matrix
- divergent meniscus
- DNA chip
- dispersion
- displaced atom
- dissecting tray
- dissipative medium
- dissociation energy
- distribution ring
- divergent bunder
- DNA microchip
- dispersing prism
- dispersion equation
- dissipative force
- distant collision
- distorted wave
- distributed moment
- disturbance
- document film
- Donohue equation
- Doppler broadening
- donor atom
- dope
- doped balls
- doublet lens
- downforce
- drag line
- drag moment
- drag reduction
- drift
- double exposure
- double flat
- double sharp
- doubled lens
- down quark
- downward drag
- Drexon card
- drift chamber
- drive
- dry mount
- dryer-glazer
- drying column
- dual beam
- dual track
- driven
- drop formation
- dropper
- dropping bottle
- dynamic equation
- dynamic friction
- dynamic method
- drying chamber
- dual complex
- dupre equation
- dynamical equation
- dyne