Browse Acronyms
Browse the acronym list:
T Listing
T
– temperature
– tesla
– short ton (2000 lb) [spell out both words to avoid confusion with "metric ton"; convert to SI: megagram (Mg)]
– tritium (also t, 3H, H3, or H3)
t
– metric ton (or tonne) (spell out both words to avoid confusion with "short ton" (see T)
– tritium (also T, 3H, H3, or H3)
T&A
time and attendance (card or unit)
T&D
transmission and distribution
T&DD
Training and Development Department
T(E)
temperature of environment
T(P)
temperature of process
T/A
timely and appropriate
T/C
transmission/compressor
T/R
– transmit/receive
– transmitter/receiver
T1/2
half-life
T3C
Tennessee Transportation Technology Coalition (also TTTC)
Ta
tantalum (element, Z = 73)
TA
– technical assistant
– temperature amplifier
– travel authorization
TA&RM
Technology Applications and Resource Management
TAA
Taiwanese American Association
TAAG
Technical Assistance and Advisory Group (TMI-2 Recovery)
TAB
– technology applications bulletin
– Tennessee Association of Business
TAC
– tactical
– Tactical Air Command
– Technical Advisory Committee
TACAMO
take charge and move out (U.S. Army)
TACAN
tactical air navigation
TACOM
Tank Automotive Command (U.S. Army)
TACSAT
tactical satellite (U.S. Army)
TACT
Technology Area Coordinating Team
TAD
– Task Authorization Directive
– Tax Administration Department
– Technology Assessment Division (DOE)
TADP
Technology Assessment and Development Plan
TAEDP
Total Army Equipment Distribution Plan
TAEDP MOD
Total Army Equipment Distribution Plan Modernization
TAG
– technical advisory group
– technical assistance grant
TAGR
Transportation Assessment and Guidance Report
TAHP
thermally activated heat pump
TAL
Target Analyte List
TAlk
total alkalinity
TAMVEC
Texas A&M Variable Energy Cyclotron
TAN
Test Area North
tan
tangent (trigonometric function)
tanh
hyperbolic tangent (hyperbolic function)
TAP
thermosiphon air panel
TAPA
Total Army Personnel Agency (formerly CIVPERCEN)
TAPCD
Tennessee Air Pollution Control Division
TAPPI
Technical Association of the Pulp and Paper Industry
TARA
test area for remedial action
TARC
transportation accident resistant container
TAS
– triple-axis spectrometer
– Towed Array Sonar
TAS
Technical Architecture Specification (C&TS)
TASD
Technical Assessment and Systems Development
TASF
TSCA Ash Storage Facility
TASP
Technical Assessment Selection Panel
TASS
Technology and Social Systems
TASTEX
Tokai Advanced Safeguards Technology Exercise
TAT
– Technical Assistance Team
– training and technology
TAV
Transatmospheric Vehicle
TAW
Tactical Aircraft Wing
TB
tight binding
Tb
terbium (element, Z = 65)
TBAH
tetrabutylammonium hydroxide
TBD
– to be determined
– to be done
TBF
time between failures
TBIF
Triple Beam Irradiation Facility
TBIS
Technical Basis Index Summary
TBMS
Task-Based Management System
TBP
– tributyl phosphate
– tri-n-butyl phosphate
TBR
thorium breeder reactor
TC
– temperature coefficient
– thermocouple
– total cost
– toxicity characteristic
– training coordinator
Tc
technetium (element, Z = 43)
Tc
– critical temperature
– Curie temperature
– transition temperature
TCA
– Tennessee Code Annotated
– trichloroacetic acid
– Turbulent Contact Absorber
TCCG
Technical Code Coordinating Group
TCDD
tetrachlorodibenzo-p-dioxin
TCE
trichloroethylene
TCEA
Tennessee Cooperative Education Association
TCF
– transmission capacity factor
– trillion cubic feet [convert to SI: trillion cubic meters (m3 x 1012), which is preferred over liter; see restrictions listed under "L" for "liter"]
TCG
temperature coefficient of (gage factor) sensitivity
TCI
– Technology Commercialization Initiative (DOE Defense Programs Branch)
– temperature coefficient of internal to source current
TCL
Target Compound List
TCLP
– Toxicity Characteristic Leaching Procedure (EPA)
– Toxic Chemical Leaching Procedure
TCMP
– Toxicity Control and Monitoring Program
– Toxicity Control Monitoring Plan
TCP/IP
Transmission Control Protocol/Internet Protocol [computer term (EthernetTM)]
TCPA
Tennessee College Placement Association
TCR
temperature coefficient of resistance
TCRA
time-critical removal action
TCRD
Tennessee Center for Research and Development
TCSUH
Texas Center for Superconductivity, University of Houston
TCV
temperature coefficient of voltage
TD
theoretical density
TD&D
Training and Development Department (ORNL)
TDA
Titanium Development Association
TDAG
Training Development and Administrative Guide
TDAPC
Tennessee Department of Air Pollution Control
TDB
Toxicology Data Bank
TDC
Tennessee Department of Conservation
TDD
Telephone Device for the Deaf
TDE
– total dose equivalent
– two-dimensional editing
TDEC
Tennessee Department of Environment and Conservation (formerly TDHE)
TDH
Tennessee Department of Health
TDHE
Tennessee Department of Health and Environment (now TDEC)
TDHF
time-dependent Hartree-Fock
TDLD
top-down logic diagram
TDLM
top-down logic model
TDOT
Tennessee Department of Transportation
TDP
– Tactical Defense Plan
– Technical Data Package
– technology development plan
TDR
time-domain reflectometry
TDS
total dissolved solids
TDY
temporary duty
TDYD
Tennessee Department of Youth Development
Te
tellurium (element, Z = 52)
TE
– temperature element
– thermoelectric
– tissue equivalent
TEAD
Tooele Army Depot
TEAM
Technology Base Enhancement for Autonomous Machines
TEC
– Technology for Energy Corporation
– total estimated cost
– Transportation Energy Conservation
TECH
Tennessee Energy Conservation in Housing
Tech Ops
Technical Operations (predecessor to Information Technology Systems and Services)
TEDE
total effective dose equivalent
TEFRA
Tax Equity and Fiscal Responsibility Act of 1982
TEG
– Transportation Energy Group
– technical evaluation group
TEGD
– Technical Enforcement Guidance Document
– tetraethyleneglycol dimethyl ether
TEHM
Terrestrial Ecosystem Hydrology Model
TEHP
tri(2-ethylhexal) phosphate
TEI
total economic impact
TEIDMS
thermal emissions isotope dilution mass spectrometery
TEL
tetraethyl lead
TELEX
teletypewriter exchange service
TEM
transmission electron microscopy
TEMA
Tennessee Emergency Management Agency
temp
temperature
TEMPEST
Study of Compromising Emanations
Tenn.
Tennessee (use after city names in references, lists, tables, footnotes, bibliographies, and indexes; spell out in text; state name is not needed with Memphis)
TEP
Technical Evaluation Program
TERC
Tennessee Emergency Response Center
TES
thermal energy storage
TESS
– Toll Enriching Services System
– TRW Environmental Safety Systems
– TRW Environmental Support Systems
Tex.
Texas (use after city names in references, lists, tables, footnotes, bibliographies, and indexes; spell out in text; state name is not needed with Dallas or Houston)
TEXT
Texas Experimental Tokamak
TEXTOR
Tokamak Experiment for Technical Oriented Research
TF
– task force
– technical fix
– toroidal field
TFCX
Toroidal Fusion Core Experiment
TFE
tetrafluoroethylene
TFIS
Technical Financial Information System
TFMMS
Total Force Manpower Management System
TFR
trifluoroethanol
TFTR
Tokamak/Toroidal Fusion Test Reactor (Princeton, N.J.)
TFW
tactical fighter wing (USAF)
TFWE
Task Force on Wood Energy
TGA
– thermogravimetrical analysis
– thermogravimetric apparatus
TGBL
through government bill of lading
TGF
Transportable Grout Facility
TGI
temperature growth index
TGOE
Task Group on Excellence
TGT
thermal gradient tube
Th
thorium (element, Z = 90)
THC
total hydrocarbons
THM
trihalomethane
ThO2
thorium oxide
THORP
Thermal Oxide Reprocessing Plant (BNF)
THORS
Thermal Hydraulic Out-of-Reactor Safety
THP
Tennessee Highway Patrol
THQ
thermal-hydraulic quenchback
THSA
Tennessee Health Studies Agreement
THTF
Thermal Hydraulic Test Facility
THTL
thermal-hydraulic test loop
THWMA
Tennessee Hazardous Waste Management Act
THWRA
Tennessee Hazardous Waste Reduction Act
TI
Transportation Index
Ti
titanium (element, Z = 22)
TIA
Tennessee Inventors Association
TIC
– Technical Information Center (now OSTI)
– Tennessee Innovation Center
– testing, installation, and commissioning
– thermally insulated current
– total inorganic carbon
TID
– tamper-indicating device
– Technical Information Division (OSTI)
– total integrated dose
TIDD
Technical Information Document Database [now CPR (Central Publications and Presentations Registry)]
TIE
technical information exchange
TIF
Triple Ion Radiation Facility (ORNL)
TIFF
Tagged Image File Format
TIG
tungsten inert gas (welding)
TIGA
Texas Instrument Graphic Architecture
TIL
Tennessee Indian League
TIMA
Thermal Insulation Manufacturers' Association
TIMS
– Telecommunication Information Management System
– The Institute for Management Science
TIN
Technical Improvement Notice [program (I&C Division)]
TiN
titanium nitride
TIO
– Technical Information Office
– technical information officer
– Technology Innovation Office
TIP
– Technology Integration Program
– Technology Internship Program
– Technology Introduction Partnerships
– Toxicology Information Program
– traveling in-core probe
TIR
– terminal imaging radar
– total indicator reading
TIRC
Toxicology Information Response Center
TIS
– Technical Information Services
– Travel Information System
TISAB
total ionic strength adjustment buffer (analytical method)
TIUS
Truck Inventory and Use Survey
TJ
terajoule
TK nitrogen
total kjeldahl nitrogen
TL
task leader
Tl
thallium (element, Z = 81)
TLA
three-letter acronym
TLD
– thermoluminescent dosimeter
– thermoluminescent dosimetry
Tloc
Total Local Expenditures
TLPR
Terrestrial Low-Power Reactor
TLS
trip logic system
TLU
trip logic unit
TLV
threshold limit value
Tm
thulium (element, Z = 69)
TM
– Technical Memorandum
– total mercury
TM
trademark
TMACS
International Mathematics and Computer Simulations
TMAP
Teleoperated Mobile Armor Penetrator
TMD
– Training Management Department
– Transportation Management Division (DOE)
TMF
Transgenic Mouse Facility
TMI
Three Mile Island
TMI-1
Three Mile Island, Unit 1
TMI-2
Three Mile Island, Unit 2
TMIS
Training Management Information System
TML
Titanium Metallurgical Laboratory (BMI)
TMS
– tandem mass spectrometry
– Task Management System
– The Metallurgical Society, Inc.
– tool-made sample
– Training Management System (formerly ATS)
– Trash Monitor Station
TMSDC
Thermomechanical Model Software Development Center (TCRD)
TMY
typical meteorological year
TN
Tennessee (use only with ZIP code addresses)
TNA
– thermal neutron analysis
– Transient Network Analyzer
TNHWMR
Tennessee Hazardous Waste Management Regulations
TNS
Telephone Network Services (Department)
TNT
trinitrotoluene
TO
Transition Operations
TOA
Tennessee/U.S. Department of Energy Oversight Agreement
TOC
The Office Connection
TOC
total organic carbon
TOD
– Technical Operations Division (PORTS)
– time of day
TOF
time-of-flight (measurement)
TOFACS
Technical Office Automation and Communications System
TOFAP
time-of-flight atom probe
TOGA
tropical oceans and global atmosphere (NOAA)
TON
total organic nitrogen
TOP
typical operating procedure
TOPO
Transportation Operations Project Office
TOPS
Transportation Operational Personal Property Standard System
TORDAC
Torpedo Data Acquisition System
TORP
Transportation Operations Research and Planning (Group of TSRS)
torr
[do not abbreviate this word; convert to SI: pascal (Pa)]
TOS
teleoperator system
TOSHA
Tennessee Occupational Safety and Health Administration
TOT
time of travel
TOU
time of use
TOV
teleoperated vehicle
TOW
tube-launched, optically tracked, wire-guided (missile system)
TOX
total organic halides
TP
test point
TPA
thermal performance advisor
TPAP
Training Program Accreditation Plan/Program
TPAT
Technical Procedures Authoring Tool
TPB
tetraphenylboron
TPC
total project cost
tpd
tons per day ["tons/d" is preferred; convert to SI: kilograms per day (kg/d) or kilograms per second (kg/s)]
TPE
Technical Planning and Evaluation
TPH
total petroleum hydrocarbons
TPI
tritium pellet injector
TPM
technical program manager
TPMT
Technical Program Management Team
TPO
– technical program officer
– Transportation Program Office
TPOP
Tritium Proof-of-Principle (pellet injector test)
TPP
– texturized plant protein (see HP and HPP)
– Transuranium Processing Plant (formerly TRU) (ORNL)
TPPA
Tennessee Valley Public Power Authority
TPQ
– threshold planning quality
– threshold planning quantity
TPR
Technical Progress Report
TPX
Tokamak Physics Experiment
TQM
total quality management
TQMP
Total Quality Management Program
tr
trace (math)
TR
– technology release
– transfer of responsibility
TR&T
Technical Resources and Training (ORNL)
tr(s).
translator(s) (use in citations)
TRA
– Teacher Research Associates (program)
– test reactor area
TRADE
Training Resources and Data Exchange (ORAU/DOE)
TRADOC
Training and Doctrine Command
TRANSCOM
U.S. Transportation Command
TRAP
Teachers Research Associates Program (formerly STRIVE)
TRB
– Transportation Research Board (National Research Council)
– truss radiant barrier
TRC
– Technical Review Committee
– time-reliability correlation
– total residual chlorine
TRD
technology release document
TRE
toxicity reduction evaluation
TREAT
transient reactor test facility
TRECS-I
Transportable Reflective-Environment Communications System, Version I
TRENDS
Transport and Release of Nuclides in Dominant Sequences
TRF
Tritium Removal Facility
TRG
Training Review Group
TRI
– TeleRobotics International, Inc.
– Toxic Release Inventory
TRL
Transuranium Research Laboratory
TRM
trial-run model
TRMS
Training Records Management System
TRP
– Technology Reinvestment Project
– Tokai Reprocessing Plant (PNC, Japan)
TRR
technical review report
TRS
– Training Records System (replaced by TMS)
– Transactional Reporting Service
TRT
– tactical response team
– Technical Resources and Training
– technical review team
TRTF
TeleRobotics Task Force
TRU
– telemetry receiver unit
– transuranic
– Transuranic Waste Program
– Transuranium Processing Facility (now TPP)
TRU/FE
telemetry receiver unit front end
TRUEX
transuranic extraction
TRUPACT-I
transuranic package transporter
TRUST
Thorium Reactor Uranium Storage Tank
TRV
– thermal relief valve
– thermal relief valve (event)
TRY
test reference year
TS
– technical specifications
– Top Secret (classification)
– Transportation Safety
TSA
– Technical Safety Appraisal
– technical security audit
TSBA
Tennessee Small Business Administration
TSC
– Technical Support Center
– Tokamak Simulation Code
– Transportation Safety Committee
TSCA
Toxic Substances Control Act of 1976 (40 CFR Pts. 700-799)
TSCAI
Toxic Substances Control Act Incinerator (K-25 Site)
TSCAIO
Toxic Substances Control Act Incinerator Operations (K-25 Site)
TSCAIOD
Toxic Substances Control Act Incinerator Operations Division (K-25 Site)
TSCG
Technical Security Countermeasures Group
TSCM
technical surveillance countermeasures
TSD
– Technical Services Division
– Technical Support Department [formerly MMD, now Technical Support Section (TSS)] (I&C Division)
– technical support document
– Tennessee School for the Deaf
– Transportation Safeguards Division
– transportation, storage, and disposal
– treatment/storage/disposal
– treatment, storage, and disposal (facilities)
TSDF
hazardous waste treatment, storage, and disposal facility
TSDR
treatment, storage, disposal, and recycle
TSE
technical surveillance equipment
TSEE
Telerobotic Small Emplacement Excavator (RPSD)
TSET
telescopic sequential entry type
TSF
Tower Shielding Facility
TSFRD
Top Secret Formerly Restricted Data
TSI
– Technical Site Information (document)
– Training Systems, Inc.
TSNSI
Top Secret National Security Information
TSNT
steady-state neutron tokamak
TSO
– timesharing system option
– tooling suborder
TSP
– Technical Standards Program (DOE)
– total soluble phosphorus
– total suspended particles/particulates
– Transportation Systems Program (ORNL)
TSPE
Tennessee Society of Professional Engineers
TSPE OR
Tennessee Society of Professional Engineers - Oak Ridge Chapter
TSPP
Technical Standards Program Procedures (manual, DOE)
TSR
– technical safety requirements
– terminate and stay resident (program) (computer term)
– Tower Shielding Reactor
TSR-II
Tower Shielding Reactor-II
TSRD
Top Secret Restricted Data
TSRS
Transportation and Systems Research Section (Energy Division)
TSS
– Technical Support Section (CTD)
– Telerobotic Systems Section
– total suspended solids
TSSAS
task space scene analysis system
TSSP
Transportation System Studies Plan
TST
– technical support team
– transportation safety training
– "Triple-S Tokamak" (Small Steady-State Tokamak)
TSTA
– Tennessee Science Teachers Association
– Tritium Systems Test Assembly
TSU
Tennessee State University (Nashville)
TT
– technology transfer
– Tiger Team
TTA
Tiger Team assessment
TTAR
Tiger Team Assessment Report
TTC
Transportation Technology Center (SNL)
TTD
terminal temperature difference
TTF
– Tennessee Technology Foundation
– Transport Task Force
TTI
Tokamak Transport Initiative
TTL
transistor-transistor logic
TTMP
transit-time magnetic pumping
TTO
– Technology Transfer Office
– total toxic organic (compounds)
– Transient Tracers in the Ocean
TTP
– Technical Task Plan
– Technology Transfer Program
TTR
– Thermal Test Reactor (Knolls)
– Tonopah Test Range
TTS
Transportation Technology Study
TTTC
Tennessee Transportation Technology Coalition (also T3C)
TTU
Tennessee TechnologicalUniversity
TTY
Bell System Teletypewriter Service
TU/C
Technology Utilization/Commercialization Office
TUF
Technology Utilization Foundation
TUFCDF
Thorium-Uranium Fuel Cycle Development Facility
TUH
Technical University of Hannover
TURF
– Thorium-Uranium Recycle Facility (ORNL)
– Transuranium Research Facility
TV
throttle valve
TV&A
Terrain Visual Analysis (U.S. Army)
TVA
Tennessee Valley Authority
TVF
Tokai Vitrification Facility (TRP of PNC, Japan)
TVL
threshold limit value (MSDS)
TVPPA
Tennessee Valley Public Power Association
TW/AA
Tactical Warning/Attack Assessment
TWA
time-weighted average
TWAF
Transuranic Waste Assay Facility
TWC
– Tennessee Wesleyan College
– through-the-wall crack
TWF
Transuranic Waste Facility
TWRA
Tennessee Wildlife Resources Agency
TWRF
Transported Waste Receiving Facility
TWRMS
tank waste retrieval manipulator system
TWRSP
Tank Waste Remediation System Privatization
TWSO
Transuranic Waste Systems Office
TWT
traveling-wave tube
TWTSF
Transuranic Waste Treatment and Storage Facility
TWX
teletypewriter exchange
TX
Texas (use only with ZIP code addresses)
TYCSP
Ten-Year Comprehensive Site Plan
TZP
tetragonal zirconia