Browse Acronyms
Browse the acronym list:
D Listing
3-D
three-dimensional
d
– day
– deuterium ("D" is preferred; also 2H, H2, or H2)
D
– debye
– deuterium (preferred over "d"; also 2H, H2, or H2)
– dyne (also dyn) [convert to SI: newton (N)]
D&D
– decontamination and decommissioning
– decontamination and dismantlement
D&I
– disassembly and inspection
– dosimetry and instrumentation
D&R
demolition and removal
D&T
development and technology
D-D
deuterium-deuterium (also DD)
D-T
deuterium-tritium (also DT)
D.C.
District of Columbia [use after (city of) Washingtonexcept in ZIP code addresses]
D.F.
degrees of freedom (of, e.g., error term) (math)
D.S.
Doctor of Science
D/A
digital-to-analog
D/H
deuterium/hydrogen (ratio)
D/P
differential pressure (also δP and dP)
D2O
heavy water
D2PC
an atmospheric dispersion model computer program
DA
– Dayton Area Office (DOE)
– U.S. Department of the Army
– Deposit Administration
– design agency
DAA
Defense Authorization Act (1993)
DAAC
Data Center for Atmospheric Trace Gas Cycling
DAC
– Daily Administrative Check
– derived air concentration
– design analysis and calculation
– digital-to-analog converter
– distribution automation and control
– dimethylacetylenedicarboxylate
DACE
design and computational experiments
DACS
data acquisition and control system
DAF
– dilution/attenuation factor
– DOE Added Factor Tax [no longer in use; use FAC (Federal Administrative Charge)]
DAF/WCTT
DOE Added Factor Tax/Waiver Criteria Task Team (WFO)
DAIN
Department of the Army Information Network
DAIS
Database Access Integration Services (EPRI)
DAM
Demand Assessment Model
DAMA
Demand-Activated Manufacturing Architecture
DAP
Diallyl phthalate
DAPC
Division of Air Pollution Control (Tennessee)
DAR
Design Authority Representative
DARA
disposal area remedial action
DARCOM
Development and Readiness Command (U.S. Army)
DARE
Demand and Resource Evaluation (HRCP program)
DARPA
Defense Advanced Research Projects Agency
DAS
– data acquisition system
– Data and Analysis Section
– disturbance analysis system
DASCAR
Data Acquisition System for Crash Avoidance Research
DATS
Drill and Transfer System
DAVACS
DOE Automated Visitor Access Control System
DAW
– dispense as written
– dry active waste
dB
decibel
DB
– data base (Although many authors prefer "database," most dictionaries still list it as two words.)
– Davis-Bacon (Act of 1931)
– diversion box
– dragbody
– dry-bulb (temperature)
dB(A) or dBA
decibels as recorded on the A-weighted scale of a standard sound level meter
DB/MP
data base management plan
DBA
– Data Base Administrator (U.S. Army)
– Davis-Bacon Act of 1931
– design-basis accident
– dibasic acid
DBC
d-bundle converter
DBE
– design-basis earthquake
– design-basis event
– dibasic ester
DBF
design-basis fire
DBFL
design-basis flood
dbh
diameter at breast height
DBM
data base management
dBm
decibels greater than (or less than) 1 mW
DBMS
data base management system
DBP
dibutylphosphate
DBS
Direct Braille Slate
DBT
– design-basis tornado
– design-basis threat
DBTS
ductile-to-brittle transition strain rate
DBTT
ductile-to-brittle transition temperature
DBW
design-basis wind
dc
direct current
DC
– data concentrator (computer)
– derivative classifier
– design criteria
– direct cycle
– distribution coefficient
– District of Columbia (use only with ZIP code addresses)
DCA
– 1,1-dichloroethene
– Defense Communications Agency
– dichloroacetylene
DCAA
Defense Contractors Audit Agency
DCC
data concentrator and controller
DCCB
Design Configuration Control Board
DCE
– data communications equipment
– dichloroethylene
– Distributed Computing Environment (computer technology)
DCF
dose conversion factor
DCG
derived concentration guideline
DCHP
dicesium hexachloroplutanate
DCL
Digital Command Language (VMS)
DCM
design change memorandum
DCOE
Domestic Crude Oil Entitlement
DCP
Drug Control Program (WSAP)
DCP-OES
direct coupled plasma-optical emission spectroscopy
DCPA
Defense Civil Preparedness Agency (DOD)
DCPD
dicyclopentadiene
DCR
– distribution control receiver
– division classification representative
DCRDR
detailed control room design review
DCRMC
Desktop Computing Resource Management Committee
DCRS
DECsystem Capacity Replacement System
DCS
distributed control system
DCSO
division computer security officer
DCT
discrete cosine transform
DD
– deuterium-deuterium (also D-D)
– division director
DD&D
Defense Decontamination and Decommissioning Program
DD/NSWC
Dahlgren Division, Naval Surface Warfare Center, Coastal Systems Station (formerly NCSC)
DDACS
Distributed Data Acquisition and Control System
DDC
distribution dispatch center
DDCE
design duty cycle event
DDD
direct distance dialing
DDE
dynamic data exchange
DDG
distillers' dried grains
DDGS
distillers' dried grains with solubles
DDN
Defense Data Network
DDR
decontamination, disposal, and recycle
DDRP
Direct/Delayed Response Project
DDS
– development direct support
– Document Delivery Service (libraries)
DDT
dichlorodiphenyl-trichloroethane
DE
– Delaware (use only with ZIP code addresses)
– dose equivalent
– drum equivalent
dE/dt
rate of evaporation
DEA
– Directorate of Housing (U.S. Army)
– draft environmental assessment (see DEIS, DES, DPEIS, EA, EAW, EIA, EIAP, EIS, ER, ERIS, ESR, FEA, FEIS, FES, FPEIS, GEIS, PA/SI, PDEA, PDEIS, PDES, PEIA, PEIS, and SEIS)
– Drug Enforcement Agency
DEAA
Data Extraction and Analysis Group
DEAR
U.S. Department of Energy Acquisition Regulation
DEC
Digital Equipment Corporation
DeCAS
Defense Contracts Administration Service
DECAT
Driver Energy Conservation Awareness Training (Program)
DECnet
Digital Equipment Corporation network
DECON
(a nuclear plant decommissioning method)
DEFCON
Defense Readiness Condition
DEFRA
Deficit Reduction Act of 1984
deg
degree (use when unit is not preceded by number)
DEGB
double-ended guillotine pipe break
DEIS
– Dielectric and Electrical Insulation Society
– draft environmental impact statement (see DEA, DES, DPEIS, EA, EAW, EIA, EIAP, EIS, ER, ERIS, ESR, FEA, FEIS, FES, FPEIS, GEIS, PA/SI, PDEA, PDEIS, PDES, PEIA, PEIS, and SEIS)
Del.
Delaware (use after city names in references, lists, tables, footnotes, bibliographies, and indexes; spell out in text)
DELTA
Dynamic Ecological Land Tenure Analysis (ORNL model)
DEM
– Department of Environmental Management
– Department of Environmental Monitoring
DEM/VAL
demonstration and validation
DEMO
demonstration reactor
DEMT
director, Emergency Management Team
DENI
Department of Electronic and Nuclear Instrumentation
DEO
director of emergency operations
DEP
Department of Environmental Protection
DEPO
division environmental protection officer
DEQ
Department of Environmental Quality
DEQE
Department of Environmental Quality Engineering
DER
Department of Environmental Regulation (Florida)
DERA
Defense Environmental Restoration Account
DERM
doubly excited reluctance motor
DERP
U.S. Defense Department Environmental Restoration Program
DES
– Data Encryption Standard
– draft environmental statement (see DEA, DEIS, DPEIS, EA, EAW, EIA, EIAP, EIS, ER, ERIS, ESR, FEA, FEIS, FES, FPEIS, GEIS, PA/SI, PDEA, PDEIS, PDES, PEIA, PEIS, and SEIS)
det
determinant (math)
DETA
diethylenetriamine
DETEC
Defensive Technology Evaluation Code
DEW
directed-energy weapon
DF
– dark field
– decontamination factor
– diesel fuel
DF2
diesel fuel No. 2
DFA
direct fluorescent antibody
DFAMS
Defense Fuels Automated Management System
DFBR
Demonstration Fast Breeder Reactor
DFD
data flow diagram
DFDP
Defense Facilities Decommissioning Program
DFG
(German equivalent of NSF)
DFM
marine diesel fuel
DFO
Director's Findings and Orders
DFP
data facility product
DFS
– deactivation furnace system
– design feature for safety
DFSA
Diesel Fuel Supply Agency
DFSD
division facility and site decommissioning
DFT
– density functional theory
– discrete Fourier transform
DFTE
Dimensional/Functional Test Equipment Facility
DFTS
decant/filtration test system
DFWD
Dissolver Feed House Watchdog Program
dg
decigram
DGM
dissolved gaseous mercury
DGP
Data Gathering Program (BPA)
DH
district heating
DHC
district heating and cooling
DHCD
Data Highway Communications director
DHHS
U.S. Department of Health and Human Services (also HHS)
DHHX
district heating heat exchangers
DHI
data handler and interface
DHR
Daily Headquarters Report (NRC)
DHS
Department of Health Services (California)
DHVL
decay heat vent line
DHW
domestic hot water
diag
diagonal (math)
diam
diameter
DIC
dissolved inorganic carbon
DIES
Design Information Exchange System
DIFR
disabling injury frequency rate (off the job)
DIII-D
Doublet III-D Tokamak
dim
dimension (math)
DIMP
diisopropyl methylphosphonate
DIMS
Data and Information Management System
DIO
Demonstrations and Improved Operations
DIP
dual in-line package
DIPRES
direct press spheroidized feed
DIPS
Dynamic Isotope Power System
DIS
– Disruption Impact Simulator
– Distributed Information Services (IMS)
DISA
Defense Information Systems Agency
DISC
direct-injection stratified charge (engine)
DISSPLA
Display Integrated Software System and Plotting Language
DITY
do it yourself (DOD)
DIY
do-it-yourself
dJ/da
ductile tearing resistance
DKD
double-crystal diffraction
DL
design load
DLA
Defense Logistics Agency
DLC
– dedicated loop controller
– direct load control
DLD
dark line defect
DLLs
dynamic linked libraries
DLM
disordered local moment
dm
decimeter
DM
– deep monitoring (wells)
– design memo
– dissolved mercury
DM6TP
Data Management 6 Transaction Processing
DMA
– direct memory access (computer term)
– Division of Military Applications
DMAG
Data Management and Analysis Group
DMBA
dimethylbenzanthracene
DMBS
Direct Manual Braille Slate
DMC
– decontamination maintenance cell
– document management center
DMD
directive management document (DOE)
DME
– dimethyl ether
– Distributed Management Environment (computer technology)
– dropping mercury electrode
DMEL
de minimis exemption level
DMETEG
dimethyl ether of tetraethylene glycol
DMG
Data Methods Group
DMIC
Defense Metals Information Center (BMI)
DML
data manipulation language
DMM
digital multimeter
DMR
– discharge monitoring report
– Document Modification Request
DMRHF
Dry Materials Receiving and Handling Facility
DMS
– Disassembly and Special Materials
– Division of Materials Sciences (DOE)
DMSO
dimethyl sulfoxide
DMT
dedicated microprocessor tester
DMU
Directives Management Unit (IMS)
DMW
demineralized water
DNA
– Defense Nuclear Agency
– deoxyribonucleic acid
– does not apply
DNAP
Division of Natural Areas and Preserves (state of Ohio)
DNAPL
dense nonaqueous-phase liquid
DNBR
– departure from nucleate boiling ratio
– departure from nucleate boiling regime
DNC
delayed neutron counting
dncm
dry normal cubic meter
DNFSB
Defense Nuclear Facilities Safety Board (DOE)
DNL
day/night weighted average noise level
DNNP
Denali National Park and Preserve
DNR
Department of Natural Resources
DNT
dinitrotoluene
DO
– development opportunity (DPR)
– dissolved oxygen
DOC
– dissolved organic carbon
– Division of Classification (DOE)
– U.S. Department of Commerce
DOD
U.S. Department of Defense
DOE
U.S. Department of Energy
DOE-ALO
U.S. Department of Energy, Albuquerque Operations Office (formerly Albuquerque Field Office)
DOE-BES
U.S. Department of Energy-Basic Energy Sciences
DOE-DP
U.S. Department of Energy Defense Programs
DOE-EM
U.S. Department of Energy Environmental Management (OTD)
DOE-ER
– U.S. Department of Energy-Energy Research
– U.S. Department of Energy Environmental Restoraton
DOE-HQ
U.S. Department of Energy Headquarters
DOE-ID
U.S. Department of Energy-Idaho Falls Operations Office
DOE-NE
U.S. Department of Energy Nuclear Energy
DOE-NP
U.S. Department of Energy-New Production Reactors
DOE-ORO
U.S. Department of Energy, Oak Ridge Operations Office (formerly Oak Ridge Field Office)
DOE-SR
U.S. Department of Energy-Savannah River Operations Office
DOE/RW
Office of Civilian Radioactive Waste Management (DOE) (also OCRWM; also RW)
DOELAP
U.S. Department of Energy Laboratory Accreditation Program
DOEM
Department of Energy Manual
DOEOA
Department of Energy Organization Act
DOER
Daily Operating Events Report (NRC)
DOF
– degree(s) of freedom
– depth of field
DOG
dissolver off-gas
DOI
U.S. Department of the Interior
DOJ
U.S. Department of Justice
DOL
U.S. Department of Labor
DOM
– dissolved organic macromolecules
– dissolved organic material
DOP
dioctyl phthalate
DOR
direct oxide reduction
DOS
– U.S. Department of State
– disk operating system
DOSAR
Dosimetry Applications Research (Group, HASRD)
DOT
U.S. Department of Transportation
doz
dozen
DP
– data processing
– direct procedure
– discipline procedure
– defense program
– Office of Defense Programs (DOE)
dP
differential pressure (also δP and D/P)
dpa
displacements per atom
DPAD
differential perturbed angular distribution
DPC
– Domestic Policy Council
– Duke Power Company
DPDMO
Defense Property Disposal Management Office
DPE
demilitarization protection ensemble
DPEIS
draft programmatic environmental impact statement (see DEA, DEIS, DES, EA, EAW, EIA, EIAP, EIS, ER, ERIS, ESR, FEA, FEIS, FES, FPEIS, GEIS, PA/SI, PDEA, PDEIS, PDES, PEIA, PEIS, and SEIS)
DPG
Document Preparation Guide
DPH
diamond-pyramid hardness (test) ("dph" is preferred)
dph
diamond-pyramid hardness (test) (preferred over "DPH")
DPI
deuterium pellet injector
dpm
disintegrations per minute
DPM
– digital panel meter
– direct procurement method
DPMA
Data Processing Management Association
DPMM
Division of Production and Materials Management (DOE)
DPMS
– differential pressure measurement system
– direct-probe mass spectrometer
DPPD
diphenyl p-phenylene diamide
DPPR
Development, Planning, and Performance Review (formerly PPR)
DPR
Development Planning and Review (Committee)
DPS
dynamic pore size
DPX
DNA-protein cross-links
DQO
data quality objective
DQP
Data Quality Program (Environmental Restoration)
DR
– decay ratio
– deviation request
DRAM
dynamic random access memory
DRB
– Demonstrated Reserve Base
– dual-reflective baffle
DRBC
Delaware River Basin Commission
DRC
– density reactivity coefficient
– Director's Review Committee (ORNL)
– division records coordinator
DRDF
Director's Research and Development Fund (ORNL)
DRE
destruction and removal efficiency
DREF
dose rate effectiveness factor
DRG
diagnosis-related group
DRI
Data Resources, Inc.
DRL
Dynamics Research Laboratory (K-25 Site)
DRM
– Data Resource Management (USN)
– dynamic resonance method
– Dynamic Retention Model
DRMO
Defense Reutilization and Marketing Office
DRN
Digital Release Notes
DRP
Demonstration Reprocessing Plant
DRS
Daresbury Recoil Spectrometer (U.K. transferred title to DOE for HRIBF at ORNL)
DRTU
distribution remote terminal unit
DS
Dallas Support Office (DOE)
DSA
– Decision Systems Analysis (a company name)
– Documented Safety Analysis
– Doppler shift attenuation
DSACS
Defense Standard Ammunition Computer System (U.S. Army)
DSC
differential scanning calorimetry
dscm
dry standard cubic meter
DSD
Decontamination Services Department (K-25)
DSDP
deep-sea drilling projects
DSEO
Data Systems Engineering Organization (see DSRD)
DSETAP
Decentralized Solar Energy Technology Assessment Program
DSG
dispersed storage and generation
DSI
Drillers Services, Inc.
DSIR
Department of Scientific and Industrial Research
DSITMS
direct-sampling ion-trap mass spectrometry
DSM
– demand-side management
– Disassembly and Special Materials
DSN
Defense Switched Network
DSO
– Disassembly and Storage Organization
– division safety officer
DSP
digital signal processing
DSRD
Data Systems Research and Development (Program, DSEO)
DSRS
Decision Systems Research Section
DSS
decision support system
DSSEA
Division of Site Safety and Environmental Analysis (NRC)
DSSF
double-shell slurry feed
DST
double-shell tank
DSW
Directed Stockpile Work
DT
deuterium-tritium (also D-T)
DT&E
demonstration, testing, and evaluation
DTA
– differential thermal analysis
– Dynamic Traffic Assignment
DTB
data transfer bus
DTBS
dynamic trip bus subsystem
DTC
– differentialthermocouple
– division telecommunications coordinator
DTD
document type definition
DTE
– data terminal equipment
– demonstration, test, and evaluation
– dissipative trapped-electron
DTER
Drawing Transfer Engineering Release
DTF
Drop Test Facility
DTFT
discrete-time Fourier transform
DTIC
Defense Technical Information Center
DTL
Decommissioning Technology Laboratory (JAERI)
DTM
– digital trip module
– division training manager
DTNSRDC
David Taylor Naval Ship Research and Development Center
DTO
– deuterium tritium oxygen
– director of technical operations
DTP
– Defense Technology Program (of SDT)
– desktop publishing
DTPA
diethylenetriaminepentaacetic acid
DTR
division technical reviewer
DTRC
David Taylor Research Center (now CD/NSWC)
DTS
deficiencies tracking system
DTST
Defensive Technologies Study Team
DTWP
Defense Transuranic Waste Program (DOE)
DU
depleted uranium
DUA
deterministic uncertainty analyses
DUOF
Depleted Uranium Oxide Facility
DUP
Depleted Uranium Production
DUSA
Designated Unclassified Subject Area
DUT
device under test
DUV
deep ultraviolet
DUVAS
Derivative Ultraviolet Absorption Spectroscopy
DUVPL
deep ultraviolet projection lithography
DV
– Denver Support Office (DOE)
– digital video
DVD
digital versatile disk
DVI
digital video interface
DVM
distributed velocity method
DVP
Data Validation Project (Energy Division)
DWBA
distorted-wave Born approximation
DWBM
Office of Defense Waste Byproducts Management
DWER
defense waste and environmental restoration
DWIA
distorted-wave impulse approximation
DWM
Division of Waste Management (DOE)
DWMP
Defense Waste Management Plan
DWPF
defense waste processing facility
DWPL
Drinking Water Priority List
DWS
– Directed Stockpile Work
– drinking water standard
DWT
drop weight
DWTM
Office of Defense Waste and Transportation Management (DOE)
DX
direct expansion
DXGC
direct expansion ground coil
Dy
dysprosium (element, Z = 66)
DYMCAS
Dynamic Special Nuclear Materials Control and Accountability System
dyn
dyne (also D) [convert to SI: newton (N)]
°C
degrees Celsius (Celsius scale was formerly called centigrade)
°F
degrees Fahrenheit [convert to SI: degrees Celsius (°C) or kelvins (K)]
°R
– degrees Rankine
– degrees Reaumur
δP
differential pressure (also dP and D/P)