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Glossary

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The Glossary Page is intended to provide a reference for the acronyms, abbreviations, and jargon words that appear within the site.

The glossary is automated, and places a dotted underline beneath any active term which is listed on this page. When the mouse pointer passes over any of these terms, a small popup window or tooltip will open to show the full text or definition of the term.

Common and well known terms are generally excluded from the automated glossary in order to prevent pages becoming unnecessarily cluttered with underlined terms.

Pluralised acronyms are not included, therefore a term such as WREN would show the highlight, while the plural WRENs would not.

Plurals are included where a jargon word is as likely to be used in singular as it is in plural, such as in the case of gaines, which tend to be referred in quantity rather than as single items.

Exclusion of terms

The automated glossary cannot distinguish between the writer's intention to use an acronym or a word. For example, Admiralty Research Establishment has the acronym ARE, but this is also the common word are, which would be underlined each time it appeared. To prevent such terms from being highlighted incorrectly, they can either be excluded on a permanent basis, or on a case by case basis.

Permanent exclusion of a term

To prevent a term from ever being highlighted by the automated glossary, its entry should be preceded by the standard `. markup (a backquote, or backtick, followed by a period), which disables the following markup.

Permanently excluded items should also be identified by being grayed, which can be achieved by prefixing the text with the %gray% markup (must use gray, not grey).

Case by case exclusion of a term

If the word is relatively uncommon, or unlikely to be used frequently, it can be manually disabled on the page where it appears. Enclose it inside the standard [= =] markup which prevents formatting of its contents. Ignoring the case (which is ignored by the automated glossary), WREN, typed normally, would be identified as an acronym, and appear with a dashed underline, tooltip, and link back to this page, while wren, if typed as [=wren=] would not, and render on screen as plain text.

This is particularly useful for terms that may need to be included in section headings, where the appearance of the dotted underline is undesirable.

Capitalisation

Many writers incorrectly show the expansion of an acronym with the words capitalised. This is generally incorrect, and unless the words were originally capitalised, such as in the case of a proper noun or formal title, an expanded acronym should be written normally, using lower case letters throughout. Expanded acronyms may inherit capitalisation if used with a proper name. For example: An AA (anti-aircraft) battery was established at Drumcross during World War II, and was known locally as Drumcross Anti-Aircraft Battery.

This subject can become confusing, and it may be prudent to re-word a sentence to remove conflicting occurrences. More important than the correct or incorrect use of capitals is consistency within a page or article. Where the use may appear to be unclear, select one style and use this throughout, to avoid further confusion by mixing styles.

Acronym quick-jump

A B C D E F G H I J K L A N O P Q R S T U V W X Y Z 0 1 2 3 4 5 6 7 8 9

A

AA
anti-aircraft
AAA
anti-aircraft artillery
AAEE
Aeroplane & Armament Experimental Establishment
AAOD
Anti-Aircraft Ordnance Depot
AAOR
Anti-Aircraft Operations Room
AAS
Air Armament School
ABM
Anti-Ballistic Missile
ABRO
Army Base Repair Organisation
Abwehr
German Intelligence, 1921 - 1944.
ACE High
Allied Command Europe High Frequency Communications System
ACIU
Allied Central Interpretation Unit
ACSEA
Air Command South East Asia
AD
Aircraft Depot
ADF
Aircraft Delivery Flight
ADU
Aircraft Delivery Unit
ADUK
Air Defence of the United Kingdom
AEA
Atomic Energy Authority
AES
Admiralty Experimental Station
AEW
Airborne Early Warning
AFB
Air Force Base
AFC
Air Force Cross
AFD
Admiralty Floating Dock
AFEE
Airborne Forces Experimental Establishment
AFU
Advanced Flying Unit
AFS
Advanced Flying School
AGS
Air Gunners School
AHBRE
Admiralty Hydro-Ballistic Research Establishment
AHQ
Airfield Headquarters
AFHQ
Allied Force(s) Headquarters
ALARM
Air Launched Anti-Radiation Missile
Amatol
High explosive made from TNT and ammonium nitrate. Used extensively during World War I and II.
AMES
Air Ministry Experimental Station
AMRAAM
Advanced Medium-Range Air-to-Air Missile
AMTE
Admiralty Marine Technology Establishment
ANS
Air Navigation School
AONB
Area of Outstanding National Beauty
AONS
Air Observer Navigation School
AOSNI
Air Officer Scotland and Northern Ireland
ARE
Admiralty Research Establishment
APC
Armament Practice Camp
APS
Armament Practice Station
APU
Aircraft Preparation Unit
ARL
Admiralty Research Laboratory
ARP
Air Raid Precautions
ASDIC
Anti-Submarine Detection Investigation Committee; Allied Submarine Detection Investigation Committee. Non-existent committee name used to maintain secrecy of sonic aspect of system, the IC was added to the basic acronym merely to confuse.
ASP
Air Stores Park
ASR
Air Sea Rescue
AST
Air Service Training
ATA
Air Transport Auxiliary
ATC
Air Training Corps
ATFERO
Atlantic Ferry Organisation
ATS
Auxiliary Territorial Service, women's branch of the British Army
AUWE
Admiralty Underwater Weapons Establishment
AWDREY
Atomic Weapon Detection Recognition and Estimation of Yield
AWE
Atomic Weapons Establishment

B

BAVG
British Auxiliary Aircraft Carrier
Battle HQ
Battle headquarters, used to defend airfields
Bde
Brigade
BGS
British Geological Survey
BHFU
British Honduras Forestry Unit
BNFL
British Nuclear Fuels Ltd
BPI
Bomb Power Indicator
BSDU
Bomber Support Development Unit
BUTEC
British Underwater Test and Evaluation Centre

C

CAA
Civil Aviation Authority
CANS
Civil Air Navigation School
CAACU
Civilian Anti-Aircraft Co-Operation Unit
CACF
Coast Artillery Co-Operation Flight/Unit
CAPFASFLOT
Captain Faslane Flotilla
CBE
Commander of the Order of the British Empire; Commander of the British Empire
CDAA
Circular Disposed Antenna Array
CDU
Coastal Defence U-Boat
CEW
Centimetric Early Warning
CGS
Central Gunnery School
CHCC
Carbeth Hutters Community Company
CHEL
Chain Home Extra Low
CHL
Chain Home Low
CMU
Civil Maintenance Unit
COMINCH
Commander in Chief
command post
The term CP was used for elements in batteries responsible for technical command and control. Troop and battery CPs (TCP and BCP) in field artillery carried out the various technical calculations to produce firing data for the guns.
Copra
Combined Operation pay ratings and accounts
COSPAS
Russian; Cosmicheskaya Sistyema Poiska Avariynich Sudov. English; Space System for the Search of Vessels in Distress.
CRC
Control and Reporting Centre
CRO
Civilian Repair Organisation
CRS
Central Radio School
CRU
Civilian Repair Unit
CTBT
Comprehensive Nuclear Test Ban Treaty 1996
CTC
Commando Training Centre
CTU
Combat Training Unit
CU
Conversion Unit
CVE
Carrier Vessel Escort

D

DARA
Defence Aviation Repair Agency
DE
Defence Estates, Ministry of Defence
DCSA
Defence Communications Services Agency
degaussing
demagnetising; neutralising the residual magnetism in the hull of a steel vessel or its parts. American use; deperming.
DEL
defence electric light
DERA
Defence Evaluation and Research Agency
DGPS
Differential Global Positioning System
Div
Division
DLO
Defence Logistics Organisation
DLT
Deck Landing Training
DMC
Defence Munitions Centre
DME
Distance Measuring Equipment
DSC
Distinguished Service Cross
DSDA
Defence Storage and Distribution Agency
DSO
Duty Staff Officer
Dstl
Defence Science and Technology Laboratory
DU
Depleted Uranium

E

EFTS
Elementary Flying Training School
EFRTS
Elementary and Reserve Flying Training School
ELF
Extremely Low Frequency, 3 Hz to 30 Hz.
ELINT
Electronic Intelligence
embrasure
Loophole or slit which allows observation or weapons fire through a wall or similar.
EMG
Electro-Magnetic Gun
EOD
explosive ordnance device
EP
Equipment Park
ERA
Engine Room Artificer
ESH
Explosive Storehouse(s)
EURATOM
European Atomic Energy Community
EWC
Electronic Warfare Calibration

F

FAA
Fleet Air Arm
FBSU
Flying Boat Servicing Unit
FBMU
Flying Boat Maintenance Unit
FFO
Furnace Fuel Oil
FIBUA
Fighting In Built Up Areas
FLT
Flight
FOCT
Fleet Operations Conversion Training
FOIC
Flag Officer In Charge
FOSNI
Flag Officer Scotland and Northern Ireland
FOSNNI
Flag Officer Scotland, Northern England and Northern Ireland
FP
Ferry Pool (ATA)
FPP
Ferry Pilots Pool Organisation
FRAeS
Fellow of the Royal Aeronautical Society
FRS
Flying Refresher School
FRU
First Responder Unit
FSM
Field Strength Monitor
FTS
Flying Training School
FU
Ferry Unit
FTU
Flight Training Unit; Ferry Training & Aircraft Despatch Unit

G

gaine
a chemical booster, such as tetryl, employed between a detonator such as mercury fulminate and a high explosive. HE shells used in WWII had to be very stable to prevent accidental detonation, and gaines ensured that more stable detonators worked reliably
gaines
chemical boosters, such as tetryl, employed between a detonator such as mercury fulminate and a high explosive. HE shells used in WWII had to be very stable to prevent accidental detonation, and gaines ensured that more stable detonators worked reliably
GCF
Group Communication Flight
GCHQ
Government Communications Headquarters
GCI
Ground Control Intercept
GDC
Group Disbandment Centre
Gee
hyperbolic navigation system, AMES Type 7000, 20-85 MHz
GL
Gun Laying
GLCM
Ground Launched Cruise Missile
GOR
Gun Operations Room
GP
Group Pool
GPO
General Post Office
GPS
Global Positioning System
GPSS
Government Pipeline and Storage System, maintains a strategic supply of aviation fuel in depots throughout the UK
GRP
Group
GSU
Group Support Unit
gun laying
The process of aiming a gun
GZI
Ground Zero Indicator

H

HAA
Heavy Anti-Aircraft
HCU
Heavy Conversion Unit
HF
High Frequency, 3 MHz to 30 MHz
HFDF
High Frequency Direction Finding; Huff-Duff
HLF
Heritage Lottery Fund
HM
Her Majesty's; His Majesty's
HMCS
Her Majesty's Canadian Ship; His Majesty's Canadian Ship
HMNB
Her Majesty's Naval Base; His Majesty's Naval Base
HMS:Her Majesty's Ship; His Majesty's Ship
HSE
Health and Safety Executive

I

IACMST
Inter-Agency Committee on Marine Science and Technology
IAEA
International Atomic Energy Authority
IATA
International Air Transport Association
ibid
From Latin ibidem "in the same place". This repeats the previous author and title and whatever else is identical. Do not use in SeSco.
ICAO
International Civil Aviation Organization
ICCS
Integrated Command and Control System
IFF
Identification Friend or Foe
ILW
Intermediate Level (nuclear) Waste
ISOLUS
Interim Storage Of Laid-Up Submarines
ISRB
Inter Services Research Bureau
IWC
Integrated Weapons Centre

J

JARIC
Joint Air Reconnaissance Intelligence Unit
JASSM
Joint Air to Surface Standoff Missile
JDAM
Joint Direct Attack Munition
JMC
Joint Military Commission; Joint Maritime Course
JMOTS
Joint Maritime Operations Tactical School
JSP
Joint Services Publication
JSSL
Joint Services School for Linguistics

K

Kriegsmarine
German Navy

L

LCA
Landing Craft Assault
LCI
Landing Craft Infantry
LCL
Landing Craft Logistics
LCT
Landing Craft Tank
LFA
Low Flying Area
Loran
long range navigation, hyperbolic navigation system, AMES Type 700, 1.7-20 MHz
LST
Landing Ship Tank

M

MAEE
Marine Aircraft Experimental Establishment
MAP
Ministry of Aircraft Production
MATELO
Maritime Air Telecommunications Organization
markup
Name given to the special formatting commands used within SeSco
MATO
Military Air Traffic Operations
MATS)
Military Air Transportation Service
MCA
Ministry of Civil Aviation; Maritime and Coastguard Agency
MCMV
Mine Counter Measure Vessels
MDP
Ministry of Defence Police
MDU
Magnox Depleted Uranium
MEFFV
Marine Expeditionary Family of Fighting Vehicles
MGB
motor gun boat
MHQ
Marine HeadQuarters
MI(R)
Military Intelligence (Research)
MoD
Ministry of Defence
ML
motor launch
MPA
Maritime Patrol Aircraft
MSD
Minimum Safe Distance
MTB
motor torpedo boat
MTI
Moving Target Indicator
MU
Maintenance Unit

N

NAAFI
Navy, Army and Air Force Institutes
NARS
North Atlantic Radio System
NATS
National Air Traffic Services
NATO
North Atlantic Treaty Organisation
Navstar
Space based radio positioning system
NBC
Nuclear Biological Chemical
NCRE
Admiralty Naval Construction Research Establishment
NDA
Nuclear Decommissioning Authority
NDB
Nuclear Depth Bomb; Non Directional Beacon
NFF
National Filling Factory
NGO
Non-Government Organisation
NGR
National Grid Reference
NII
The Nuclear Installations Inspectorate of The Health and Safety Executive
NOFU
Newfoundland Overseas Forestry Unit
NOSS
Naval Ocean Surveillance System
NSA
National Security Agency

O

OADU
Overseas Aircraft Despatch Unit
obturation
Sealing of the rear of the breech chamber to prevent propellant gases escaping, provided by the breech in BL ordnance and cartridge case in QF.
OCU
Operational Conversion Unit
OGD
Other Government Department
OIC
Officer In Charge
OLF
Operational Low Flying
ordnance
British term for the complete barrel assembly, typically comprising firing mechanism, breech, barrel and muzzle brake.
OTC
Officer Training Corps
OTH
Over The Horizon
OTU
Operational Training Unit

P

PAFU
(Pilots) Advanced Flying Unit
PATP
Packed Aircraft Transit Pool
PDS
Passive Detection System
PDU
Photographic Development Unit
PFI
Private Finance Initiative
POL
Petroleum, Oil and Lubricants
PRO
Public Records Office
PPI
Plan Position Indicator
PRFU
(Pilot) Refresher Flying Unit
PRU
Photographic Reconnaissance Unit
PWSS
Port War Signal Station
PX
Post Exchange, US base retail store

Q

QF
Starfish fire decoy; quick fire, a type of ordnance where a brass cartridge case contained the propellant charge bags and provided obturation.
QL
Starfish lighting decoy
QWIC
Qualified Weapons Instructor Course

R

RA
Royal Artillery
RAF
Royal Air Force, formed on April 1, 1918, from the Royal Flying Corps and the Royal Naval Air Service.
RAP
Recognised Air Picture
RASC
Royal Army Service Corps
RATOG
Rocket Assisted Take Off Gear
RATT
Radio Teletype
RCAHMS
Royal Commission on the Ancient and Historical Monuments of Scotland
RCNC
Royal Corps of Naval Constructors
REME
Royal Electrical and Mechanical Engineers
REPPIR
Radiation Emergency Preparedness and Public Information Regulations
RDF
Radio Direction Finding
RFA
Royal Fleet Auxiliary
RFC
Royal Flying Corps
RFP
Radio Finger Printing
RGA
Royal Garrison Artillery
RGF
Royal Gun Factory
RIAS
The Royal Incorporation of Architects in Scotland
RMAS
Royal Maritime Auxiliary Service
RMS
original Royal Mail Steamer; later Royal Mail Ship
RN
Royal Navy
RNAD
Royal Naval Armament Depot
RNAS
Royal Naval Air Service; Royal Naval Air Station; Royal Naval Airship Station
RNR
Royal Naval Reserve
ROC
Royal Observer Corps
RNTF
Royal Naval Torpedo Factory
RNVR
Royal Naval Volunteer Reserve
ROF
Royal Ordnance Factory
ROS
Repair On Site Parties (Came under the control of MUs)
RSG
Regional Seat of Government
RSMID
Receipt, Storage, Maintenance, Issue and Distribution
RSU
Repair & Salvage Unit/Section

S

SAR
Search and Rescue; Synthetic Aperture Radar
SAS
Special Air Service
SARSAT
Search And Rescue Satellite Aided Tracking
SBWASS
Space Based Wide Area Surveillance System
SC
Salvage Centre
SCNDA
Scottish Campaign for Nuclear Disarmament
SEPA
Scottish Environment Protection Agency
SF
Special Fire; Starfish
shell
A hollow projectile containing some type of filling or payload and fitted with a fuze, usually at the nose.
SGR
School Of General Reconnaissance
SHF
Super High Frequency, 3 GHz and 30 GHz
shrapnel
First used about 1800 and withdrawn from UK service after World War II. Had some use in the first years of World War II with guns of World War I. <br \>The shell was activated by time fuze to project a cone of lead bullets forward in a shotgun like manner. The term is widely misused to describe the fragments from a bursting HE shell.
sic
Latin: thus; so; used in quotations to show that an apparent error within the quote is, not a mistake and is to be read as it stands.
SIGINT
Signals Intelligence
SLG
Satellite Landing Ground
SNPD
Scottish NATO POL Depot
SOC
Sector Operations Control
SOE
Special Operations Executive
SONAR
SOund Navigation And Ranging
SOO
Staff Officer Operations
SOSUS
Sound Surveillance System, USN

:SOTT School Of Technical Training

SP
Staging Post
SSBN
United States Navy hull classification symbol for a nuclear powered, ballistic nuclear missile carrying submarine. SS denotes Ship Submersible, B denotes Ballistic missile capability, N denotes Nuclear power.
SSEB
South of Scotland Electricity Board
SSGN
United States Navy hull classification symbol for a nuclear powered cruise missile submarine. SS denotes Ship Submersible, G denotes Guided (Cruise) missile, N denotes Nuclear power.
SSIN
Secure Survivable Integrated Network
SSSI
Site of Special Scientific Interest
SSK
United States Navy hull classification symbol for a hunter-killer submarine (retired).
SSN
United States Navy Hull classification symbol for a general-purpose fast attack submarine. SS denotes Ship Submersible, N denotes Nuclear power.
SSU
Subsatellite Unit
STCICS
Strike Command Integrated Communications System
STOL
short take-off and landing
STS
Special Training School
SU
Servicing Unit
SUBRON
Submarine Squadron

T

TA
Territorial Army
TAF
2nd Tactical Air Force
TAL
Trans-oceanic Abort Landing
TEU
Tactical Exercise Unit
TLBH
Top-Level Budget Holder
TLT
Tactical Leadership Training
trunnions
Provide the rotational axis for elevating the barrel in its cradle. Horizontal cylindrical projections from the cradle that rotate vertically in the saddle.
TRV
Torpedo Recovery Vessel
TTA
Tactical Training Area

U

UAV
unmanned aerial vehicle
UHF
ultra high frequency, 300 MHz and 3 GHz
UK
United Kingdom of Great Britain and Northern Ireland
UKADR
United Kingdom Air Defence Region
UKAEA
United Kingdom Atomic Energy Authority
UKASACS
United Kingdom Air Surveillance and Control System
UKWMO
United Kingdom Warning and Monitoring Organization
UNDEX
Admiralty Underwater Explosion Research Establishment
UNESCO
United Nations Educational, Scientific and Cultural Organization
upper register
Firing (artillery) at an elevation greater than 45 degrees, now called high angle.
USAAC
United States Army Air Corps
USAAF
United States Army Air Force
USAF
United States Air Force
USAFE
United States Air Force Europe
USN
United States Navy
USS
United States Ship
UXO
Unexploded Ordnance (Ammunition, Bombs, Explosives)

V

VGS
Volunteer Gliding Squadron (School, until 2005)
VHF
Very High Frequency, 30 MHz to 300 MHz
VIC
Victualling Inshore Craft
VOR
VHF (Very High Frequency) Omni-directional Radio-range; VHF Omnidirectional Range
VTOL
vertical take-off and landing

W

WAAF
Women's Auxiliary Air Force
WMF
World Monuments Fund
WNG
Wing
WREN
Women's Royal Naval Service (member of)
WRNS
Women's Royal Naval Service
WSA
Warship Support Agency
WT
Wireless Telegraphy

X

XDO
Extended Defence Officers Post

Y

Z

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