D

d   D2O  

da

da   DAB   DAC   Dacite   Daguerre, Louis-Jacques-Mande  
dalton   Dalton, John   Dalton′s Law of Partial Pressures   Dam   dam  
Damped Natural Frequency   Damped Wave   Damper   Damping   Damping Factor  
Damping Pad   Damping Ratio   Damps   Dangling Bonds   Danjon Scale  
DAQ   daraf   Darcets Alloy   darcy   Darcy, Henry  
Dark Current   Dark Field Imaging   Dark Matter   Darlington Pair   Darwin, Charles  
Dashpot   Data   Data Acquisition   Data Mile   Data Mining  
Data Processing   Data Transmission   Database   Datalogger   Date  
Date Stamp   Daughter Isotope   DaughterBoard   Davenport, Thomas   Davisson-Germer Experiment  
Davy, Sir Humphry   Day   dB   dB FS   dBA  
dBaO  

db

dbar   dBB   dBc   dBi   dBLi  
dBm   dBmO   dBmOp   dBrn   dBsm  
dBu   dBv   dBW   dBZ   DC  
DC Amplifier   DC Component   DC DC Converter   DC Restorer   DDR  

de

de Broglie Wavelength   Dead Centre   Dead Room   Dead Short   Dead Time  
Deamination   Debug   Deburr   Debye   Debye, Peter  
deca   Decade   Decagon   Decalescence   decametre  
Decane   Decantation   Decarburization   Decay Rate   Decay Time  
Decaying Orbit   Deceleration   Decennium   deci   decibar  
Decibel   decigram   Deciles   decilitre   Decillion  
Decimal   Decimal Number   Decimal Point   Decimal Prefixes   Decimation  
decimetre   Decipol   Decision Tree   Deck   Deck-Stiffened Arch  
Decoction   Decoder   Decomposition Reaction   Decompounded   Decrepitation  
Decruitment   Deduction   De-Emphasis   Deep Cycle Battery   Deep Drawing  
Deep Etching   Deep Lake Water Cooling   Defect Structure   Defective Matrix   Deficient Number  
Definite Time Relay   Definition of a Sound   Deflagration   Deflection Coils   Deflection Plates  
Deformation   Deformation Energy   Deformation Under Load   Deformation-Type Thermometer   Degas  
Degenerate Code   Degenerate Orbital   Degeneration   Degenerative Feedback   Degradation  
Degrease   Degree   Degree Day   Degree of Polymerization   Degrees of Freedom  
Dehumidifier   Dehydrator   Deionization Potential   Deionization Time   Del Operator  
Delamination   Delamination Strength   Delay Line   Deletion Mutation   Deliquescence  
Deliquium   Delivery Stroke   Delphi Techniques   Delta   Delta Connection  
Delta Iron   Delta T   Delta Wing   Delta-Sigma Modulating ADC   Demeon  
Demodulation   de Moivre   Denaturation   Denatured Alcohol   Dendrite  
Dendrochronology   Denial of Service   Denier   Denominator   Dense Line  
Density   Density Function   Density Functional Theory   Dent   Dentils  
Deoxyribonucleic Acid   Dependent Suspension   Dependent Variable   Dephlegmation   Dephlogisticated Air  
Depletion Region   Deposit Corrosion   Depth Filter   Depth Filter Media   Depth Gauge  
Depth Micrometer   Depth of Cut   Depth of Discharge   Depth of Field   Depth of Focus  
Depuration   Derated Engine   Derived SI Units   Derived Units   Desalination  
Descartes, Rene   Descartes Rule of Signs   Desiccant   Desiccator   Design Limit  
Design Pressure   Design Working Pressure   Desktop Computer   Desolvation   Desorption  
Desquamation   Destructive Hydrogenation   Destructive Interference   Detector   Detent Ball and Spring  
Detergent Additive   Determinism Principle   Deterministic Signal   Detonation   Deuterium  
Deuteron   Deutsches Institut für Normung   Deviation Ratio   Devitrification   Devonian  
Dew Point   Dew Point Depression   Dew Point Hygrometer   Dextrorotatory   Dezincification  
DFT  

dg

dg   DHCP  

Di

Diagnostic Acceptability Measure   Diagnostic Rhyme Test   Diagonal   Diagonal Matrix   Dial Indicator Gauge  
Dialog Unit   Dialuminium Hexachloride   Dialuminium Trisulphide   Dialysis   Diamagnetism  
Diameter   Diamond   Diamond Point Chisel   Diaphoretic   Diaphragm  
Diaphragm Valve   Diaphram Arch   Diastereomers   Diatomic Molecules   Diazonium Salt  
Diazotization   Dicaesium Oxide   Dicaesium Peroxide   Dicaesium Sulphide   Dichlorodiethyl Sulphide  
Dichlorogermylene   Dichloromethane   Dichotic   Dicobalt Trioxide   Didot Point  
Didymium   Die   Die Casting   Die Lines   Die Stock  
diebus alternis   diebus tertius   Dielectric   Dielectric Breakdown Voltage   Dielectric Constant  
Dielectric Displacement   Dielectric Heating   Dielectric Hysteresis Loss   Dielectric Losses   Dielectric Strength  
Dielectric Withold Volatge   Diesel   Diesel Engine   Diesel Particulate Filter   Diesel, Rudolf  
Dietary Fibre   Diethyl Ether   Difference   Differential   Differential Amplifier  
Differential Calculus   Differential Equations   Differential GPS   Differential Input   Differential Pressure Indicator  
Differential Pressure Valve   Differential Scanning Calorimeter   Differential Thermal Analysis   Differential Voltage   Differentiation  
Diffraction   Diffraction Grating   Diffraction Limited   Diffraction Region   Diffuse Insolation  
Diffuse Reflection   Diffuse Sound Field   Diffuser   Diffusers   Diffusion  
Diffusion Bonding   Diffusion Coefficient   Diffusion Flux   Diffusion Furnace   Diffusion Length  
Diffusion Rate   Digestion   Digimetic   Digit   Digital  
Digital Audio   Digital Audio Broadcasting   Digital Audio Compression   Digital Caliper   Digital Camera  
Digital Circuit   Digital Computer   Digital Filter   Digital Rights Management   Digital Signal Processing  
Digital Signatures   Digital Theatre System   Digital Versatile Disc   Digital Visual Interface   Digital-to-Analogue Converter  
Digitization   Dihedral   Dihedral Angle   Dihexyl   Dihydrogen Monoxide  
Dihydrogen Selenide   Dilatometer   Dilithium Oxide   Dilithium Peroxide   Dilute  
Dilution   Dimanganese Heptoxide   Dimension   Dimension of a Subspace   Dimensions  
Dimercury Dichloride   Dimethyl Ether   Dimethyl Ketone   Dimethyl Oxide   Dimethylbenzenes  
DIMM   DIN   Diode   Diode Drop   Diode Transistor Logic  
Diophantine Equation   Dioptre   Diotically   DIP   Dip Angle  
Dip Brazing   Dip Equator   Diplexer   Diploid   Dipole  
Dipole-Dipole Interaction   Dipotassium Oxide   Dipotassium Peroxide   Diprotic Acid   Dipstick  
Dirac Delta Function   Dirac, Paul   Dirac′s Constant   Direct Chill Casting   Direct Coupled Amplifier  
Direct Coupling   Direct Current   Direct Current Amplifier   Direct Current Restorer   Direct Fuel Cell  
Direct Insolation   Direct Measurement   Direct Methanol Fuel Cell   Direct Proportion   Direct Quenching  
Direct Sequence Modulation   Direct Short   Direct Sound   Direction   Directional Antenna  
Directional Gyro   Directive Gain   Directivity Factor   Directivity Index   Disc  
Disc Brake   Disc Clutch   Discharge   Discharge Curve   Discharge Factor  
disclaimer   Discontinuity   Discontinuous Graph   Discordant   Discrete  
Discrete Components   Discrete Fourier Transform   Discrete Gabor Transform   Discrete Tone   Disilver Sulphide  
Disinfectant   Disjoint Events   Disk Operating System   Dislocation   Dislocation Line  
Disodium Oxide   Dispersant   Dispersion   Dispersion Forces   Dispersion Model  
Displacement   Displacement Current   Displacement Reaction   Displacements per Atom   Display Resolution  
Disposable Filter   Disproportionation   Disruptive Discharge Coil   Dissociation   Dissolve  
Dissolved Oxygen   Distance Between Two Points   Distance Double Law   Distance Factor   Distillate  
Distillation   Distillation Per Ascensum   Distillation Per Decensum   Distillation Per Obliquium   Distillation with Addition  
Distortion   Distributed Capacitance   Distributed Computing Environment   Distributed Constants   Distributed Inductance  
Distributed Load   Distribution   Distribution Circuit Breaker   Distribution Panel   Distributive Law  
Disulfane   Disulphur Dioxide   Dither   Diurnal Aberration   Diurnal Temperature Range  
Divalent   Divalent Anion   Divalent Cation   Dive Brake   Divergence  
Diversion Channel   Diverter Valve   Dividend   Dividing Head   Divinyl  
Division   Divisor  

dl

dl  

dm

dm   DMFC   DNA   DNA Chimera   DNA Cloning  
DNA Library   DNA Ligase   DNA Polymerase   DNA Replicase System   DNA Supercoiling  
DNA Transposition   DNS  

Do

Do Loop   Dobson Unit   Dodd Bars   Dodecagon   Dodecahedron  
Dodecane   Dolby Digital   Dolby Prologic   Dolby, Ray   Domain  
Domain Name   Domain Naming System   Domain of the Function   Dome   Domino  
Domoic Acid   Donjon   Donor   Donor Level   Door  
Dopant   Doping   Doppler Effect   Doppler Sonar   Doric Order  
Dormant Volcano   Dormer Window   DOS   Dose   Dose Equivalent  
Dose Rate   Dosimeter   Dot   Dot Product   Dots Per Inch  
Double Acoustic Barrier   Double Blind Experiment   Double Bond   Double Data Rate   Double Displacement  
Double Glazing   Double Helical Gear   Double Helix   Double Hung Window   Double Integrating Gyro  
Double Row Bearing   Double Star   Double Word   Double-Blind Reference Oil   Double-Ended Spanner  
Double-Tube Shock Absorber   Dovetail Joint   Dovetail Saw   Dowel   Down Feed  
Down Quark   Downcomer   Downconverter   Downforce   Downsampling  
Downspout   Downstream Face   Downturned Eye   Dozen  

dp

dpa   DPDT Switch   dpi   DPST Switch  

Dr

Draft Angle   Draft Gauge   Drag   Drag Chute   Drag Coefficient  
Drag Link Steering System   Drain Cock   Drain Plug Spanner   Drainage Basin   Drake Equation  
DRAM   Drawbridge   Drawing   Drawknife   Drawknife Bench  
Drawn Product   Dressing   Drew, Charles Richard   Drex   Dribbling  
Drift   Drill Bits   Drill Chuck   Drill Chuck Arbor   Drill Gauge  
Drill Jig   Drill Press   Drinking Water   Drive Fit   Drive-By-Wire  
Driveline   Driven Element   Driveshaft   Drivetrain   Driving Point Measurement  
DRM   Drogue Parachute   Drone   Drop Tank   Dropout  
Dropping Point   Dropsonde   Drought Severity Category   Drug   Drum  
Drum Brake   Drum Tower   Drum Type Armature   Drumming Noise   Dry Air  
Dry Battery   Dry Bulb Temperature   Dry Bulb Thermometer   Dry Cell   Dry Friction Damping  
Dry Strength   Dry Sump   Dry Weight   Drystone Wall   Drywall  
DSP   D-Sub Connector   DTL   DTS  

Du

Dual Element Fuse   Dual Gate Mosfet   Dual In-line Memory Module   Dual Inline Package   Dual Voting  
Dual-Access Memory   Dual-Ported Memory   Duckworth, Keith   Duct   Duct Acoustics  
Ducted Fan   Ductile Fracture   Ductile-to-Brittle Transition   Ductility   Dulcification  
Dulong-Petit Law   Dummy Load   Duodecane   Duodecimal Number System   Duplex Filter  
Duplex Theory of Localization   Duplexer   Durability   Durability Books   Durability Calculations  
Durability Conversions   Durability Source Code   Durability Weblinks   Durometer   Dust  
Dutch Metal   Duty Cycle   DVD   DVI  

Dw

Dwell   dwt  

Dy

Dy   Dy2O3   dyad   Dye Penetrant   Dymel A  
Dynamic Creep   Dynamic Data Exchange   Dynamic Equilibrium   Dynamic Friction   Dynamic Headroom  
Dynamic Host Configuration Protocol   Dynamic Load   Dynamic Mass   Dynamic Microphone   Dynamic Modulus  
Dynamic Pressure   Dynamic Random Access Memory   Dynamic Range   Dynamic Resistance   Dynamic Sealing  
Dynamic Stiffness   Dynamic Unbalance   Dynamic Vibration Absorber   Dynamic viscosity   Dynamite  
Dynamometer   Dyne   Dysprosium   Dysprosium III Oxide