TermCymru

Results are displayed in Welsh alphabetical order A-Y
Welsh: Awdurdod Datgomisiynu Niwclear
English: NDA
Status C
Subject: Environment
Part of speech: Noun, Masculine, Singular
Definition: Nuclear Decommissioning Authority
Last updated: 2 February 2009
Welsh: Awdurdod Datgomisiynu Niwclear
English: Nuclear Decommissioning Authority
Status C
Subject: Environment
Part of speech: Noun, Masculine, Singular
Definition: NDA
Last updated: 2 February 2009
Welsh: Bwa Niwclear y Gogledd-orllewin
English: North West Nuclear Arc
Status C
Subject: Planning
Part of speech: Noun, Masculine, Singular
Context: Mae gan Gymru y cyfleusterau, y gallu a’r uchelgais i fod yn fan a fydd yn rhoi bywyd newydd i’r diwydiant niwclear, gan gysylltu’r diwydiannau a’r cyfleusterau niwclear sy’n bodoli ym Mwa Niwclear y Gogledd-orllewin, o Sellafield yn Cumbria i’r cyfleuste
Last updated: 17 January 2020
Welsh: Cemegol, Biolegol, Radiolegol neu Niwclear
English: CBRN
Status C
Subject: Environment
Definition: Chemical, Biological, Radiological or Nuclear
Last updated: 10 January 2007
Welsh: Cemegol, Biolegol, Radiolegol neu Niwclear
English: Chemical, Biological, Radiological or Nuclear
Status C
Subject: Environment
Part of speech: Adjective
Definition: CBRN
Last updated: 10 January 2007
Welsh: cyflwr niwclear isaf
English: nuclear ground state
Status B
Subject: Environment
Part of speech: Noun, Masculine, Singular
Definition: Ym maes ffiseg, cyflwr lle mae protonau a niwtronau’r niwclews wedi’u trefnu yn eu ffurf egni isaf, heb unrhyw gyffro niwclear ychwanegol.
Last updated: 23 December 2025
Welsh: Cynghrair Gwrth-Niwclear Cymru
English: Welsh Anti Nuclear Alliance
Status C
Subject: Environment
Part of speech: Noun, Feminine, Singular
Last updated: 15 March 2004
Welsh: Cytundeb Cydweithredu ar Faterion Niwclear
English: Nuclear Cooperation Agreement
Status A
Subject: Politics
Part of speech: Noun, Masculine, Singular
Definition: Cytundeb cyfreithiol sy'n nodi bwriad dwy wladwriaeth neu gorff rhyngwladol i gydweithio yn y sector niwclear sifil, a fframwaith ar gyfer gwneud hynny.
Last updated: 10 June 2021
Welsh: Cytundeb Cydweithredu ar Faterion Niwclear
English: NCA
Status A
Subject: Politics
Part of speech: Noun, Masculine, Singular
Definition: Cytundeb cyfreithiol sy'n nodi bwriad dwy wladwriaeth neu gorff rhyngwladol i gydweithio yn y sector niwclear sifil, a fframwaith ar gyfer gwneud hynny.
Notes: Dyma'r acronym Saesneg a ddefnyddir am Nuclear Cooperation Agreement.
Last updated: 10 June 2021
Welsh: Datgomisiynu Niwclear
English: Nuclear Decommissioning
Status A
Subject: Education
Part of speech: Verb
Context: Apprenticeship learning pathway.
Last updated: 31 October 2012
Welsh: Deddf Safleoedd Niwclear 1965
English: Nuclear Installations Act 1965
Status A
Subject: Titles of legislation
Part of speech: Noun, Feminine, Singular
Last updated: 12 September 2012
Welsh: Gorchymyn (Gorsaf Gynhyrchu Niwclear) Hinkley Point C
English: Hinkley Point C (Nuclear Generating Station) Order
Status B
Subject: Titles of legislation
Part of speech: Noun, Masculine, Singular
Last updated: 23 March 2021
Welsh: gorsaf ynni niwclear
English: nuclear power plant
Status B
Subject: Planning
Part of speech: Noun, Feminine, Singular
Plural: gorsafoedd ynni niwclear
Last updated: 23 March 2021
Welsh: gorsaf ynni niwclear
English: nuclear power station
Status B
Subject: Planning
Part of speech: Noun, Feminine, Singular
Plural: gorsafoedd ynni niwclear
Last updated: 23 March 2021
Welsh: Gwaith Niwclear
English: Nuclear Working
Status A
Subject: Education
Part of speech: Noun, Masculine, Singular
Context: Apprenticeship learning pathway.
Last updated: 31 October 2012
Welsh: gwastraff o bwerdai niwclear newydd
English: new-build waste
Status A
Subject: Waste
Part of speech: Noun, Masculine, Singular
Definition: From new nuclear power stations.
Context: Radioactive waste.
Last updated: 31 March 2014
Welsh: Gweithrediadau Niwclear Arbenigol (Opsiynau Niwclear)
English: Specialized Process Operations (Nuclear Options)
Status A
Subject: Education
Part of speech: Proper noun
Context: Apprenticeship framework.
Last updated: 19 February 2014
Welsh: hydroleg thermol niwclear
English: nuclear thermal hydraulics
Status C
Subject: Planning
Part of speech: Noun, Feminine, Singular
Last updated: 17 January 2020
Welsh: Labordy Meddygaeth Niwclear Cenedlaethol
English: National Nuclear Medicine Laboratory
Status C
Subject: Health
Part of speech: Noun, Masculine, Singular
Last updated: 30 March 2023
Welsh: meddygaeth niwclear
English: nuclear medicine
Status C
Subject: Health
Part of speech: Noun, Feminine, Singular
Definition: A branch of medicine which uses radiation and other nuclear phenomena for treatments and diagnosis of disease.
Last updated: 11 July 2007
Welsh: Rheoliadau Adweithyddion Niwclear (Asesu Effeithiau Amgylcheddol Datgomisiynu) 1999
English: Nuclear Reactors (Environmental Impact Assessment for Decommissioning) Regulations 1999
Status A
Subject: Titles of legislation
Part of speech: Noun, Plural
Last updated: 12 September 2012
Welsh: Rheoliadau Diogelwch y Diwydiannau Niwclear 2003
English: The Nuclear Industries Security Regulations 2003
Status B
Subject: Titles of legislation
Part of speech: Noun, Plural
Notes: Teitl cwrteisi ar ddarn o ddeddfwriaeth sydd ar gael yn Saesneg yn unig.
Last updated: 23 October 2025
Welsh: Rheoliadau Iechyd a Diogelwch a Niwclear (Ffioedd) 2016.
English: The Health and Safety and Nuclear (Fees) Regulations 2016
Status B
Subject: Titles of legislation
Part of speech: Noun, Plural
Notes: Teitl cwrteisi ar ddarn o ddeddfwriaeth sydd ar gael yn Saesneg yn unig.
Last updated: 19 February 2019
Welsh: Rheolwr Polisi Tanwyddau Ffosil, Cynhyrchu Niwclear a Dur
English: Fossil Fuel, Nuclear Generation & Steel Policy Manager
Status C
Subject: Welsh Government posts and departments
Part of speech: Noun, Masculine, Singular
Last updated: 13 May 2013
Welsh: sector niwclear
English: nuclear sector
Status C
Subject: Economic development
Part of speech: Noun, Masculine, Singular
Context: Rydym wedi gweithio’n ddif ino i ddangos y prof ad a’r sgiliau yn y sector niwclear, o ran gweithrediadau a datgomisiynu, yn yr Wylfa a Thrawsfynydd.
Last updated: 5 September 2019
Welsh: Sefydliad Ewropeaidd ar gyfer Ymchwil Niwclear
English: CERN
Status B
Subject: Economic development
Part of speech: Proper noun, Masculine, Singular
Definition: European Organization for Nuclear Research
Context: Nuclear physics
Last updated: 16 March 2012
Welsh: Swyddfa Datblygu Niwclear
English: Office for Nuclear Development
Status C
Subject: Environment
Part of speech: Noun, Feminine, Singular
Definition: OND
Last updated: 27 April 2010
Welsh: Swyddfa Datblygu Niwclear
English: OND
Status C
Subject: Environment
Part of speech: Noun, Feminine, Singular
Definition: Office for Nuclear Development
Last updated: 27 April 2010
Welsh: tanwydd niwclear
English: nuclear fuel
Status B
Subject: Planning
Part of speech: Noun, Masculine, Singular
Plural: tanwyddau niwclear
Last updated: 23 March 2021
Welsh: tanwydd niwclear a ddisbyddwyd
English: spent nuclear fuel
Status B
Subject: Planning
Part of speech: Noun, Masculine, Singular
Plural: tanwyddau niwclear a ddisbyddwyd
Last updated: 23 March 2021
Welsh: technoleg niwclear y byddai ei lledaenu'n fater sensitif
English: proliferation-sensitive nuclear technology
Status C
Subject: ICT
Part of speech: Noun, Feminine, Singular
Last updated: 24 September 2002
Welsh: Tegwch yn y Farchnad, Llywodraethiant, Gorfodi’r Gyfraith a Chydweithredu Barnwrol, Pysgodfeydd, Rhaglenni’r UE, Masnach mewn Gwasanaethau, Masnach mewn Nwyddau, Rhyddid i Symud, Ynni a Chydweithredu yn y Sector Niwclear Sifil, Trafnidiaeth, Cydweithredu
English: Level Playing Field, Governance, Law Enforcement and Judicial Cooperation, Fisheries, EU programmes, Trade in Services,  Trade in Goods, Mobility, Energy and Civil Nuclear Cooperation, Transport, Civil Judicial Cooperation
Status B
Subject: Europe
Part of speech: Noun, Masculine, Singular
Notes: Dyma'r 11 maes y mae Llywodraeth Cymru wedi eu nodi fel y rheini a ddylai fod yn flaenoriaethau negodi wrth i Lywodraeth y DU drafod y berthynas â'r UE ar ôl Brexit.
Last updated: 8 May 2025
Welsh: twf arfogaeth niwclear
English: nuclear proliferation
Status C
Subject: General
Part of speech: Noun, Masculine, Singular
Last updated: 2 September 2004
Welsh: Yr Awdurdod Heddlu Niwclear Sifil
English: Civil Nuclear Police Authority
Status C
Subject: Local government
Part of speech: Noun, Masculine, Singular
Last updated: 19 October 2004
Welsh: Y Swyddfa Reoleiddio Niwclear
English: Office for Nuclear Regulation
Status B
Subject: Environment
Part of speech: Noun, Feminine, Singular
Last updated: 23 March 2021
Welsh: Y Swyddfa Reoleiddio Niwclear
English: ONR
Status B
Subject: Environment
Part of speech: Noun, Feminine, Singular
Notes: Dyma'r acronym Saesneg a ddefnyddir am Office for Nuclear Regulation.
Last updated: 23 March 2021