- Dual-mass flywheel
- Dual-phase steel
- Dual-polarization interferometry
- Dual-ported RAM
- Dual-use
- Duality
- Duality gap
- Dubins path
- Dublin Core
- Duck curve
- Ductal carcinoma
- Ducted fans
- Ducted propeller
- Ductile
- Ductile iron
- Ductile iron pipe
- Ductility
- Ductwork
- Duffing equation
- Dufour effect
- Dugout
- Duhamel's integral
- Dulong-Petit law
- Duluth Complex
- Dumas method
- Dummy load
- Dummy variable
- Dump truck
- Dumper
- Dunes
- Dunite
- Dunn Index
- Duodenal
- Duodenal bulb
- Duplex
- Duplex stainless steel
- Duplexer
- Duqu
- Dura mater
- Durability
- Duralumin
- Durene
- Duricrust
- Durometer
- Durotaxis
- Dusk
- Dust
- Dust abatement
- Dust collection system
- Dust collector
- Dust explosions
- Dust mite allergy
- Dust mites
- Dustiness
- Dusty plasma
- Dutch standards
- Duty cycle
- Dvorak
- Dyadic product
- Dyadics
- Dye lasers
- Dye tracing
- Dye-sensitized solar cell
- Dyeing
- Dyes
- Dymola
- Dynamic Adaptive Streaming over HTTP
- Dynamic Monte Carlo method
- Dynamic array
- Dynamic balance
- Dynamic braking
- Dynamic compaction
- Dynamic consent
- Dynamic covalent chemistry
- Dynamic data
- Dynamic decision-making
- Dynamic demand
- Dynamic dispatch
- Dynamic electrophoretic mobility
- Dynamic equilibrium
- Dynamic frequency scaling
- Dynamic imaging
- Dynamic increase factor
- Dynamic linking
- Dynamic loading
- Dynamic mechanical analysis
- Dynamic method
- Dynamic mode decomposition
- Dynamic modulus
- Dynamic network analysis
- Dynamic positioning
- Dynamic pressure
- Dynamic priority scheduling
- Dynamic programming
- Dynamic range
- Dynamic range compression
- Dynamic recrystallization
- Dynamic relaxation
- Dynamic routing
- Dynamic scattering mode
- Dynamic semantics
- Dynamic shear rheometer
- Dynamic similarity
- Dynamic simulation
- Dynamic soaring
- Dynamic spectrum management
- Dynamic strain aging
- Dynamic structure factor
- Dynamic tidal power
- Dynamic time warping
- Dynamic topography
- Dynamic vapor sorption
- Dynamic vapour sorption
- Dynamic voltage scaling
- Dynamic web page
- Dynamic-link library
- Dynamical mean field theory
- Dynamical mean-field theory
- Dynamical simulation
- Dynamical systems
- Dynamin
- Dynamo
- Dynamo theory
- Dynamometer
- Dyne
- Dynein
- Dynode
- Dypingite
- Dysarthria
- Dysautonomia
- Dysbiosis
- Dyscalculia
- Dysentery
- Dysesthesia
- Dysgraphia
- Dyslexia
- Dyslipidemia
- Dyspepsia
- Dysphagia
- Dysphonia
- Dysplasia
- Dysprosium
- Dyssynergia
- Dystocia
- Dystrophy
- Dysuria
- Dzyaloshinskii-Moriya interaction
- E band
- E-64
- E-books