TermCymru

Results are displayed in Welsh alphabetical order A-Y
Welsh: radiotherapi radical
English: radical radiotherapy
Status B
Subject: Health
Part of speech: Noun, Masculine, Singular
Definition: Radiotherapi sy'n defnyddio dôs uchel o belydrau.
Last updated: 26 March 2020
Welsh: radiotherapi stereotactig ar y corff
English: SBRT
Status A
Subject: Health
Part of speech: Noun, Masculine, Singular
Definition: stereotactic body radiotherapy
Last updated: 20 March 2013
Welsh: radiotherapi stereotactig ar y corff
English: stereotactic body radiotherapy
Status A
Subject: Health
Part of speech: Noun, Masculine, Singular
Definition: SBRT
Last updated: 15 July 2013
Welsh: radis
English: radish
Status C
Subject: Plants
Part of speech: Noun, Masculine, Singular
Definition: Y planhigyn dof. 'Rhuddygl' yw enw'r planhigyn gwyllt.
Last updated: 27 January 2004
Welsh: radiwm
English: radium
Status A
Subject: Environment
Part of speech: Noun, Masculine, Singular
Definition: Symbol cemegol: Ra
Notes: Elfen gemegol. Gweler y canllawiau sillafu termau benthyg gwyddonol ar BydTermCymru.
Last updated: 18 June 2025
Welsh: radon
English: radon
Status A
Subject: Environment
Part of speech: Noun, Masculine, Singular
Definition: Symbol cemegol: Rn
Notes: Elfen gemegol. Gweler y canllawiau sillafu termau benthyg gwyddonol ar BydTermCymru.
Last updated: 18 June 2025
Welsh: Radon: allwch chi mo'i weld, allwch chi mo'i ogleuo, allwch chi mo'i deimlo: fe allwch chi brofi amdano
English: Radon: you can't see it, you can't smell it, you can't feel it: you can test for it
Status A
Subject: Environment
Part of speech: Noun, Masculine, Singular
Last updated: 30 January 2004
Welsh: Radur
English: Radyr
Status A
Subject: Place-names
Part of speech: Proper noun
Definition: Caerdydd
Last updated: 14 August 2003
Welsh: Radur
English: Radyr
Status A
Subject: Place-names
Part of speech: Proper noun
Notes: Ward etholiadol yn Ninas a Sir Caerdydd. Dyma'r enwau a ragnodwyd yn Gymraeg a Saesneg ar gyfer y ward yng Ngorchymyn Dinas a Sir Caerdydd (Trefniadau Etholiadol) 2021.
Last updated: 17 August 2022
Welsh: Raffl Fawr neu Raffl
English: Prize Draw
Status C
Subject: Welsh Government posts and departments
Part of speech: Noun, Feminine, Singular
Last updated: 14 January 2003
Welsh: rafftio dŵr gwyn
English: whitewater rafting
Status B
Subject: Tourism and leisure
Part of speech: Verb
Last updated: 29 March 2006
Welsh: rafft seilbyst
English: piled raft
Status B
Subject: Planning
Part of speech: Noun, Masculine, Singular
Plural: rafftiau seilbyst
Definition: System sylfeini sy’n cyfuno rafft goncrit fawr â seilbyst dwfn er mwyn rhannu pwysau’r strwythur rhwng y ddaear o dan y rafft a’r seilbyst.
Last updated: 20 November 2025
Welsh: RAF y Fali
English: RAF Valley
Status C
Subject: Place-names
Part of speech: Neutral
Last updated: 18 January 2005
Welsh: ralïau moduron
English: motor rallies
Status C
Subject: Transport
Part of speech: Noun, Plural
Last updated: 23 December 2005
Welsh: Rali Cymru GB
English: Wales Rally GB
Status A
Subject: Transport
Part of speech: Noun, Feminine, Singular
Context: Brand name.
Last updated: 10 August 2004
Welsh: Rali Network Q
English: Network Q Rally
Status C
Subject: Transport
Part of speech: Noun, Feminine, Singular
Last updated: 24 September 2002
Welsh: Rali'r Anfarwolion
English: Rally of Legends
Status A
Subject: Transport
Part of speech: Proper noun, Feminine, Singular
Last updated: 30 August 2013
Welsh: ramp ar stepiau
English: channel steps
Status B
Subject: Transport
Part of speech: Noun, Masculine, Singular
Plural: rampiau ar stepiau
Definition: Sianel gul o fetel neu goncrid ar risiau mewn ardal awyr agored, er mwyn i feicwyr fedru seiclo i fyny ac i lawr y llethr.
Last updated: 17 December 2020
Welsh: rampiau
English: ramps
Status C
Subject: Transport
Part of speech: Noun, Plural
Last updated: 10 January 2008
Welsh: rancio
English: ranking
Status B
Subject: Education
Part of speech: Verb
Last updated: 15 December 2011
Welsh: rancio am yn ôl
English: reverse rank
Status C
Subject: Education
Part of speech: Verb
Last updated: 2 April 2012
Welsh: rapporteur
English: rapporteur
Status C
Subject: General
Last updated: 29 July 2004
Welsh: rapporteurs
English: rapporteurs
Status C
Subject: Personnel
Part of speech: Noun, Plural
Last updated: 4 February 2009
Welsh: RARPA
English: RARPA
Status C
Subject: Education
Part of speech: Proper noun
Notes: Dyma'r acronym a ddefnyddir yn y ddwy iaith am Recognising and Recording Progression and Achievement / Cydnabod a Chofnodi Cynnydd a Chyflawniad
Last updated: 6 April 2017
Welsh: RART
English: RART
Status C
Subject: General
Part of speech: Noun, Masculine, Singular
Definition: Regional Asset Recovery Team
Last updated: 6 April 2004
Welsh: Rasa
English: Rassau
Status C
Subject: Place-names
Part of speech: Proper noun
Definition: Blaenau Gwent.
Last updated: 5 February 2008
Welsh: Rasa a Garnlydan
English: Rassau and Garnlydan
Status A
Subject: Place-names
Part of speech: Proper noun
Notes: Ward etholiadol ym Mwrdeistref Sirol Blaenau Gwent. Dyma'r enwau a ragnodwyd yn Gymraeg a Saesneg ar gyfer y ward yng Ngorchymyn Bwrdeistref Sirol Blaenau Gwent (Trefniadau Etholiadol) 2021.
Last updated: 17 August 2022
Welsh: Ras am Oes
English: Race for Life
Status A
Subject: Health
Part of speech: Noun, Masculine, Singular
Last updated: 1 May 2009
Welsh: Ras Cefnfor Volvo 2017-18
English: The Volvo Ocean Race 2017-18
Status B
Subject: Tourism and leisure
Part of speech: Proper noun, Feminine, Singular
Context: Sŵn hwylie’n codi. Croeso i Gaerdydd. Caerdydd yn croesawu Ras Cefnfor Volvo 2017-18 27 Mai 2018 - 10 Mehefin 2018
Last updated: 28 March 2018
Welsh: Ras Feicio Cwpan y Byd i Fenywod
English: Women's World Cup Cycle Race
Status C
Subject: Tourism and leisure
Part of speech: Noun, Feminine, Singular
Last updated: 5 March 2009
Welsh: rasio moduron
English: motor racing
Status C
Subject: Transport
Part of speech: Verb
Last updated: 23 December 2005
Welsh: rasio motocross
English: motocross
Status C
Subject: Transport
Part of speech: Verb
Last updated: 23 December 2005
Welsh: rasio Speedway
English: Speedway
Status C
Subject: Transport
Part of speech: Verb
Last updated: 23 December 2005
Welsh: ras sglefrolio
English: roller derby
Status A
Subject: Tourism and leisure
Part of speech: Noun, Feminine, Singular
Last updated: 6 January 2014
Welsh: ratan
English: rattan
Status C
Subject: Environment
Part of speech: Noun, Feminine, Singular
Last updated: 25 July 2005
Welsh: ratid
English: ratite
Status C
Subject: Agriculture
Part of speech: Noun, Masculine, Singular
Definition: aderyn o deulu'r estrys, aderyn di-gêl
Last updated: 17 August 2004
Welsh: ratidau
English: ratites
Status C
Subject: Agriculture
Part of speech: Noun, Plural
Definition: adar o deulu'r estrys, adar di-gêl
Last updated: 17 August 2004
Welsh: RBCT
English: RBCT
Status C
Subject: Agriculture
Part of speech: Neutral
Definition: Randomised Badger Culling Trial
Last updated: 18 October 2004
Welsh: RBIS
English: RBIS
Status A
Subject: Economic development
Part of speech: Noun, Masculine, Singular
Notes: Dyma’r acronym a ddefnyddir yn y ddwy iaith am y Rural Business Investment Scheme / Y Cynllun Buddsoddi mewn Busnesau Gwledig.
Last updated: 19 October 2016
Welsh: RCN
English: RCN
Status B
Subject: Health
Part of speech: Noun, Masculine, Singular
Context: The RCN were key to promoting this and we continue to work closely with them.
Notes: Dyma'r acronym a ddefnyddir yn y ddwy iaith am y Royal College of Nursing / Coleg Nyrsio Brenhinol.
Last updated: 18 May 2017
Welsh: RCP
English: RCP
Status B
Subject: Environment
Part of speech: Proper noun
Notes: Mae'r llythrennau hyn yn acronym am Representative Concentration Pathway (gweler y cofnod am y term hwnnw am fwy o fanylion) ac fe'i defnyddir hefyd yn rhan o enwau cyfres o senarios o fewn y dull gweithredu hwnnw, sef RCP2.6, RCP4.5, RCP6.0 ac RCP8.5.
Last updated: 16 September 2021
Welsh: RCSA
English: RCSA
Status C
Subject: Social services
Part of speech: Neutral
Definition: Regulation of Care Services Award
Last updated: 22 September 2004
Welsh: RCSAC
English: KSSPC
Status C
Subject: Education
Part of speech: Noun, Feminine, Singular
Definition: Key Skills Support Programme Wales
Last updated: 12 September 2007
Welsh: RCSLT
English: RCSLT
Status C
Subject: Health
Part of speech: Neutral
Definition: Royal College of Speech and Language Therapists
Last updated: 23 July 2003
Welsh: RDMD
English: RDMD
Status C
Subject: Health
Definition: Regional Drug Misuse database
Last updated: 3 March 2006
Welsh: RDP Sir Gâr
English: RDP Sir Gâr
Status A
Subject: Agriculture
Definition: RDP = Rural Development Plan. A brand that encompasses all of Carmarthenshire County Council’s RDP work.
Last updated: 10 August 2011
Welsh: reach: Grŵp Gweithredu Lleol
English: reach: Local Action Group
Status C
Subject: Economic development
Last updated: 24 January 2011
Welsh: reach: Partneriaeth Wledig Pen-y-bont-ar-Ogwr
English: reach: Bridgend Rural Partnership
Status C
Subject: Economic development
Last updated: 24 January 2011
Welsh: ReAct
English: ReAct
Status A
Subject: Personnel
Part of speech: Noun, Masculine, Singular
Definition: Redundancy Action Scheme. Welsh Assembly Government Support to help individuals gain new skills, overcome obstacles and return to work in the shortest time possible.
Last updated: 18 February 2009
Welsh: ReAct+
English: ReAct+
Status A
Subject: Economic development
Part of speech: Proper noun
Notes: Ar lafar, dywedir "ReAct Plus" yn Saesneg a "ReAct Plws" yn Gymraeg.
Last updated: 16 March 2022