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There are 472 entries started with 'd'
D D (Unit) D/DBP
D/DBP RULE Dr da
DAF DAFT DAILY COVER (Waste Control)
DAILY FLOOD PEAK DAILY TYPE OF TIDE DALTON
DALTON'S LAW OF PARTIAL PRESSURE DAM DAMP
DAMP, BLACK DAMP, FIRE DAMP, WHITE
DAMPING DAMPING CAPACITY DAMPING COEFFICIENT, ACTUAL
DAMPING COEFFICIENT, CRITICAL DAMPING RATIO DAMPING, CRITICAL
DARCY (darcy) (Unit) DARCY VELOCITY DARCY'S LAW
DARK ORGANIC PEATY CLAY DAUGHTER ISOTOPE (Radioactivity) DAY SECOND-FOOT (Unit)
DAY TANK DBP DC
DCGL (Radioactivity) DCP DCS
DDT DE DE BROGLIE WAVELENGTH
DEAD FISH (Material) DEAD LOAD DEAD OIL
DEAD SEA DEAD STORAGE DEAD WATER
DEADMAN (Foundation) DEAERATOR DEALKALIZATION
DEALKALIZER DEASHING DEBACLE
DEBRIS DEBRIS AVALANCHE DEBRIS BASIN
DEBRIS CONE DEBRIS DAM DEBRIS FALL
DEBRIS FLOW (Landslide) DEBRIS LAW DEBYE (Unit)
DECANT DECARBONATOR DECAY
DECAY AREA DECAY CONSTANT DECAY OF WAVES
DECHLORINATION deci DECIBEL (dB) (Unit)
DECLINING-RATE FILTRATION DECOMMISSION (Radioactivity) DECOMMISSIONING (Radioactivity)
DECOMPOSERS DECOMPOSITION DECONTAMINATION
DEEP BED FILTER DEEP COMPACTION DEEP DYNAMIC COMPACTION
DEEP FOUNDATION DEEP FOUNDATION INSTITUTE (DFI) DEEP LIME COLUMN
DEEP PERCOLATION DEEP SEEPAGE DEEP WATER
DEEP-FOCUS EARTHQUAKE DEEP-SEA DEPOSIT DEEP-WATER WAVE
DEEP-WELL DISPOSAL DEEP-WELL INJECTION DEEP-WELL PUMP
DEFECT DEFECT STRUCTURE DEFINITE PROPORTIONS
DEFLATION DEFLATION ARMOR DEFLATION BASIN
DEFLOCCULANT DEFLOCCULATE AGENT DEFOLIANT
DEFORESTATION DEFORMABLE-BODY DEFORMATION
DEFORMATION CRYSTALLIZATION DEFORMATION OF ROCKS DEFORMATION, SHEAR
DEGASIFIER DEGRADATION DEGRADATION (Polymer)
DEGRADATION POTENTIAL DEGREE OF CONSOLIDATION DEGREE OF FREEDOM (Vibration)
DEGREE OF POLYMERIZATION DEGREE OF SATURATION DEGREE OF SENSITIVITY
DEGREE-DAYS DEHYDRATE DEHYDRATION
DEIONIZATION (DI) deka DELF
DELIQUESCENT DE-LISTING A WASTE (Waste Control) DELTA
DELTAIC DEPOSIT DEMINERALIZATION DEMINERALIZING
DENDRITIC STREAM PATTERN DENIER DENITRIFICATION
DENSE NON-AQUEOUS PHASE LIQUIDS (DNAPLs) DENSITY DENSITY CURRENT
DENSITY, APPARENT DENSITY, BULK DENSITY, TRUE
DENUDATION DEOXYGENATION DEOXYRIBONUCLEIC ACID (DNA)
DEOXYRIBOSE DEPARTMENT OF AGRICULTURE (USDA) DEPARTMENT OF COMMERCE
DEPARTMENT OF ENERGY (DOE) DEPARTMENT OF ENVIRONMENTAL RESOURCES-PENNSYLVANIA (DER) DEPARTMENT OF THE INTERIOR
DEPARTMENT OF TRANSPOTARTION (DOT) DEPLETION DEPOSITION
DEPTH (D) DEPTH FACTOR (D) (Slope stability) DEPTH FACTOR (Wave)
DEPTH FILTRATION DEPTH OF FIXITY (Foundation) DER
DERECHO (Weather) DESALINATION DESALTING
DESANDING PLANT DESERT DESERT CAUSES
DESERT DISTRIBUTION DESERT DISTRIBUTION USA DESERT ENVIRONMENTS
DESERT PAVEMENT DESERT SAND DUNE PATTERN DESERT SAND DUNE PATTERN-BARCHAN DUNE
DESERT SAND DUNE PATTERN-LONGITUDINAL DUNE DESERT SAND DUNE PATTERN-STAR DUNE DESERT SAND DUNE PATTERN-TRANSVERSE DUNE
DESERT SAND DUNE PATTERN-U-SHAPED DUNE DESERT SAND DUNES DESERT SOIL
DESERT SOIL PROFILE DESERT TEMPERATURE DESERT VARNISH
DESERT WATER DESERT WIND DESERTIFICATION
DESERTIFICATION, ANTI DESICCANT DESICCATION
DESIGN LOAD DESORPTION DESTRUCTION AND REMOVAL EFFICIENCY (DRE)
DETECTION MONITORING PROGRAM (Waste Control) DETENTION TIME (Anaerobic Digesters) DETENTION TIME (Ponds)
DETENTION TIME (Settling Tanks) DETERGENTS DETONATION
DETOXIFICATION DETRITAL DETRITAL SEDIMENTARY ROCK
DETRITUS DETRITUS TANK DEUTERIUM OXIDE
DEUTERIUM (D) DEVIATOR STRESS DEW
DEW POINT DEWATERING DEWATERING LAGOON
DEWATERING TABLE DEW-POINT DEPRESSION DEW-POINT HYDROMETER
DfE DFI DFT
DI DIALYSIS DIAMETER
DIAMETER, EQUIVALENT DIAPHRAGM WALL DIASTROPHISM
DIATOM OOZE DIATOMACEOUS EARTH (DE) DIATOMACEOUS EARTH FILTER
DIATOMIC MOLECULES DIATOMITE DI-DEUTO HYDROGEN OXIDE
DIELECTRIC DIELECTRIC STRENGTH DIELECTRIC CONSTANT (D)
DIELECTRIC CONSTANT, RELATIVE () DIFFERENTIAL THERMAL ANALYSIS (DTA) DIFFRACTION (X-ray)
DIFFRATION ANALYSIS, X-RAY DIFFUSE DOUBLE-LAYER DIFFUSED SURFACE WATER
DIFFUSED-AIR AERATION DIFFUSER DIFFUSION
DIFFUSIVITY (D) DIGESTER DIGESTION
DIKE DILATANCY DILATANCY OF ROCKS
DILATANT DILATOMETER (DMT) DILUENTS
DILUTE DILUTION DILUTION FACTOR
DILUVIUM DIODE DIORITE
DIOXIN DIP DIPOLAR WATER
DIPOLE DIPOLE MOMENT (DM, ) DIPOLE MOMENT UNIT
DIP-SLIP FAULT DIP-SLIP FAULT (Earthquake) DIRECT FILTRATION
DIRECT FLOOD DAMAGE DIRECT MEASUREMENT (Radioactivity) DIRECT RUNOFF
DIRECT SHEAR TEST DIRECT TENSILE TEST DIRECTIONAL SOLIDIFICATION
DIRTY BOMB DISCHARGE DISCHARGE (Waste Control)
DISCHARGE SCALE RATIO DISCHARGE VELOCITY (v) DISCRETE PARTICLE SETTING
DISEASE DISINFECTANT DISINFECTION
DISINFECTION BY-PRODUCTS (DBP) DISINTEGRATION DISPERSANT
DISPERSED PARTICLES DISPERSED PHASE DISPERSING AGENT
DISPERSION DISPERSION (Wave) DISPERSION MEDIUM
DISPERSION RATE DISPERSION RATIO DISPERSIVE CLAY
DISPERSIVE ORIENTATION DISPLACEMENT (Earthquake) DISPLACEMENT (Water)
DISPLACEMENT PERIOD (Water) DISPLACEMENT, CYCLE DISPLACEMENT, PERMANENT
DISPOSAL DISPROPORTIONATION DISSECTED
DISSOCIATION DISSOLUTION DISSOLVED AIR FLOTATION (DAF)
DISSOLVED NITROGEN FLOATATION (DNF) DISSOLVED ORGANIC CARBON (DOC) DISSOLVED OXYGEN (DO)
DISSOLVED SOLIDS DISTILLATE DISTILLATION
DISTILLED WATER DISTORTION DISTORTION SETTLEMENT
DISTRIBUTION COEFFICIENT (Kd) (Radioactivity) DITCH DITCH LINING
DIURNAL DIURNAL CURRENT DIURNAL FORCE
DIURNAL INEQUALITY DIURNAL TYPE OF TIDE DIVE CULVERT
DIVERSION AREA DIVERSION CANAL DIVERSION CHAMBER
DIVERSION CHANNEL DIVERSION DAM DIVERSION DITCH
DIVERSION TERRACE DIVERTING WEIR DIVIDE (Drainage)
DIVISOR (Soil Conservation) DM DMT
DNA DNA CODING DNAPL
DNF DO DOAS
DOC DOD DOE
DOG-LEG PILE (Pile foundation) DOH DOI
DOLERITE DOLOMITE DOLPHIN (Foundation)
DOMAINS DOMESTIC SEWAGE DOMESTIC WASTEWATER
DOODLE OR DUMMY HOLE (Foundation) DOS DOSAGE
DOSE COMMITMENT (Radiation) DOSE EQUIVALENT (Radiation) DOSE-RESPONSE ASSESSMENT
DOSIMETER (Radiation) DOSING SIPHON DOSING TANK
DOT DOUBLE BOND DOUBLE-LAYER
DOUBLE-LAYER WATER DOUBLE-PUNCH TEST DOUGLAS SCALE
DOWN DRAG (Foundation) DOWNGRADIENT DPM (dpm) (Unit)
DPMP DRAFT TUBE DRAG COEFFICIENT
DRAG TANK DRAGON-BONE WALL (Material) DRAIN
DRAIN HOLES DRAIN TILE DRAIN WELL
DRAINAGE DRAINAGE AREA DRAINAGE BASIN
DRAINAGE BLANKET DRAINAGE CLASSES DRAINAGE COEFFICIENT
DRAINAGE DENSITY DRAINAGE EQUILIBRIUM DRAINAGE GALLERIES
DRAINAGE INTERNAL DRAINAGE NET DRAINAGE SYSTEM
DRAINAGE TUNNELS DRAINAGE WATER DRAINAGE WELL
DRAINAGE, HORIZONTAL DRAINAGE, ROADBED DRAINS, HORIZONTAL
DRAINS, LONGITUDINAL TRENCH DRAINS, SAND DRAINS, SHALLOW
DRAINS, SURFACE DRAWDOWN (Groundwater) DRE
DREDGE DREDGE SPOILS DREDGING
DREDGING MATERIAL DRIFT (Geology) DRIFT (Waste Control)
DRIFT BARRIER DRIFT VELOCITY DRIFTTEST
DRILLED SHAFT DRILLING MUD DRINKING WATER
DRINKING WATER EQUIVALENT LEVEL (DWEL) DRINKING WATER PRIORITY LIST (DWPL) DRINKING WATER QUALITY REGULATIONS
DRIP IRRIGATION DRIZZLE DROUGHT
DROWNED VALLEY DRUM PULVERIZER DRUM SCREEN
DRUMLIN DRY DENSITY DRY DEPOSITION
DRY FILM THICKNESS (DFT) DRY ICE DRY PIT
DRY SAMPLING DRY UNIT WEIGHT DRY WASH
DRY WEATHER FLOW (DWF) DRY WELL DRY-BULB TEMPERATURE
DRY-CLEANING WASTES DRYDOCK DRY-SIDE (Geotechnology)
DUAL FLOW SCREEN DUAL MEDIA FILTER DUCTILE
DUCTILE FRACTURE DUCTILITY DUFF
DUMP (Waste Control) DUNE DUNE, BARCHAN
DUNE, LONGITUDINAL DUNE, TRANSVERSE DUNE, U-SHAPED
DUNG (Material) DUNITE DUST
DUST CLASSIFICATION DUST DEVIL DUST STORM
DUST, ELECTRIC ARC FURNACE DUST, KILN DUST, TOXIC
DUST, VOLCANIC DUTCH CONE PENETROMETER DWEL
DWF DWPL DYNAMIC COMPACTION
DYNAMIC COMPACTION, DEEP DYNAMIC CONSOLIDATION (Foundation) DYNAMIC DENSIFICATION
DYNAMIC FORCE (Foundation) DYNAMIC HEAD DYNAMIC MAGNIFICATION FACTOR
DYNAMIC MODULUS (E*) (Material) DYNAMIC PRESSURE DYNAMIC RESPONSE
DYNAMIC VISCOSITY DYNAMICS DYNAMICS, PARTICLE
DYNAMICS, RAINFALL DYNAMITE DYNE (Unit)
DYSENTERY




ENVIRONMENTAL GEOTECHNOLOGY DICTIONARY
Edited By
Hsai-Yang Fang, Ph.D
Professor Emeritus
Lehigh University. Bethlehem, PA
Distinguished Fellow
Global Institute for Energy & Environmental Systems
The University of North Carolina at Charlotte, Charlotte, NC

Copyright Reserved 2006

Environmental geotechnology is a relatively new and interdisciplinary subject, which covers soil, water and rock and their interaction with various environmental cycles including the atmosphere, biosphere, hydrosphere, lithosphere, as well as geomicrobiosphere. To tackle this complex subject, it is necessary to have knowledge from other disciplinary fields including agricultural science, biology, environmental science, geology, microbiology, mineralogy, and physicochemistry. Therefore, a uniform glossary of terms, definitions, nomenclature, abbreviation, acronym, symbols and units is needed for general discussions, reports and documents to minimize confusion and to improve the effectiveness for the environmental aspects of geotechnical problems. Some important information is collected, compiled and edited, and in spite of careful preparation of this dictionary, there cannot be avoided some missing or misinterpreted terms, typing errors, etc. The editor hopes, however, that with the aid of suggestions and criticism, there can be improvement for a later edition.
Thanks to many government agencies, professional societies and private organizations including American Society of Civil Engineers (ASCE), American Society for Testing and Materials (ASTM), Transportation Research Board (TRB), International Society of Environmental Geotechnology (ISEG), U.S. Environmental Protection Agency (EPA), U.S. Department of Energy (DOE) for providing useful documents for preparation of the dictionary. Also thanks to Prof. Charles Ochola, Villanova University, Prof. Tae-Hyung Kim, Korea Maritime University, Ms. Eleanor S. Nothelfer of Fritz Engineering Laboratory, Lehigh University and Mr. Gustavo Borel Menezes of Global Institute for Energy and Environmental Systems (GIEES), University of North Carolina at Charlotte for their assistance during various phases of preparation of the manuscript.
Acknowledgment is made to Review Committee Members for their time and willingness to review the manuscripts.

Prof. Ronald C. Chaney, Humboldt State University, Arcata, CA
Prof. John L. Daniels, The University of North Carolina at Charlotte, NC
Prof. Jeffrey C. Evans, Bucknell University, Lewisburg, PA
Prof. T. Cassia De Brito Galvao, Universidade Federal de Minas Gerais, BRAZIL
Prof. Hilary I. Inyang, The University of North Carolina at Charlotte, NC
Dr. Abidin Kaya, URS Corporation, Honolulu, HI
Prof. Jai-Young Lee, The University of Seoul, KOREA
Prof. Irene M.C. Lo, Hong Kong University of Science & Technology, Hong Kong
Prof. Horace K. Moo-Young Jr., Villanova University, PA
Dr. Jouko Saarela, Finnish Environmental Institute, FINLAND
Prof. Robert W. Sarsby, The University of Wolverhampton, U.K.
Prof. Leonardo Zeevaert, Universidad Nacional Automoma de Mexico, MEXICO
Prof. Thomas F. Zimmie, Rensselaer Polytechnic Institute, NY

Hsai-Yang Fang
February 15, 2006

Web Edition by:
Gustavo Borel Menezes, GIEES, UNC Charlotte
Simon Chung, GIEES, UNC Charlotte

Developed by: Gustavo Borel Menezes