TermCymru

Results are displayed in alphabetical order.
English: RSL 32/09: The Accounting Requirements for Registered Social Landlords General Determination (Wales) 2009
Welsh: RSL 32/09: Penderfyniad Cyffredinol Gofynion Cyfrifyddu ar gyfer Landlordiaid Cymdeithasol Cofrestredig (Cymru) 2009
Status C
Subject: Housing
Part of speech: Noun, Masculine, Singular
Definition: Guidance for Registered Social Landlords (RSLs) about preparing financial statements
Last Updated: 28 September 2009
English: RSNP
Welsh: DRhAB
Status C
Subject: Education
Part of speech: Noun, Masculine, Singular
Definition: Regional Statement of Needs and Priorities
Last Updated: 22 November 2006
English: RSP
Welsh: Ymarferydd Diogelwch Cofrestredig
Status C
Subject: Health
Part of speech: Noun, Masculine, Singular
Definition: Registered Safety Practitioner
Last Updated: 18 February 2005
English: RSPB
Welsh: RSPB
Status A
Subject: Agriculture
Part of speech: Noun, Feminine, Singular
Last Updated: 8 December 2022
English: RSPCA
Welsh: RSPCA
Status A
Subject: Agriculture
Part of speech: Noun, Feminine, Singular
Definition: Royal Society for the Prevention of Cruelty to Animals
Last Updated: 18 February 2005
English: RSS
Welsh: Syndicetiad Syml Iawn
Status C
Subject: ICT
Part of speech: Noun, Masculine, Singular
Definition: Really Simple Syndication. It allows information to be sent to a user instead of the user having to search for the information.
Last Updated: 26 March 2007
English: RSS
Welsh: RSS
Status C
Subject: Environment
Part of speech: Noun, Masculine, Singular
Definition: Rural Stress Scheme
Last Updated: 7 October 2004
English: RSS feed
Welsh: porthiant RSS
Status B
Subject: ICT
Part of speech: Noun, Masculine, Singular
Plural: porthiannau RSS
Notes: Saif RSS am Real Simple Syndication.
Last Updated: 28 January 2025
English: RSV
Welsh: feirws syncytiol anadlol
Status C
Subject: Health
Part of speech: Noun, Masculine, Singular
Definition: Respiratory Syncytial Virus. A virus that causes severe respiratory infections.
Last Updated: 26 January 2010
English: RSVP
Welsh: RSVP
Status B
Subject: Personnel
Part of speech: Verb
Notes: Gall fod yn addas defnyddio'r ymadrodd Cymraeg "Ateber erbyn" hefyd.
Last Updated: 26 May 2024
English: RSVP
Welsh: RSVP
Status A
Subject: Social services
Part of speech: Noun, Feminine, Singular
Definition: Retired and Senior Volunteer Programme
Last Updated: 24 November 2003
English: RT
Welsh: RT
Status A
Subject: ICT
Part of speech: Verb
Definition: re-tweet
Context: Defnyddir "AD" ac "Ail-drydarwch" hefyd.
Last Updated: 3 December 2012
English: Rt
Welsh: Rt
Status A
Subject: Health
Definition: Ym maes epidemioleg, dynodiad gwyddonol y gyfradd y mae clefyd yn cael ei drosglwyddo arni o fewn poblogaeth (R) dros amser (t).
Notes: Gweler y cofnod am R value / gwerth R yn TermCymru.
Last Updated: 13 July 2020
English: RTA
Welsh: anifeiliaid gwyllt/moch daear wedi'u hanafu neu'u lladd ar y ffyrdd
Status C
Subject: Agriculture
Part of speech: Noun, Plural
Definition: road traffic accident
Last Updated: 18 February 2005
English: R tag
Welsh: tag R
Status C
Subject: Agriculture
Part of speech: Noun, Masculine, Singular
Definition: tag sy'n cael ei rhoi ar ddafad sydd wedi colli'i thag ac wedi cael ei symud
Last Updated: 5 February 2004
English: RTC
Welsh: Consortiwm Trafnidiaeth Rhanbarthol
Status C
Subject: Transport
Part of speech: Noun, Masculine, Singular
Definition: Regional Transport Consortium
Last Updated: 12 December 2012
English: RTEF
Welsh: RTEF
Status A
Subject: Tourism and leisure
Part of speech: Noun, Feminine, Singular
Notes: Dyma'r acronym ar gyfer y Regional Tourism Engagement Fund / Cronfa Ymgysylltu Twristiaeth Ranbarthol.
Last Updated: 14 September 2016
English: RTF
Welsh: Fformat Testun Cyfoethog
Status C
Subject: ICT
Part of speech: Noun, Masculine, Singular
Definition: Rich Text Format. A proprietary file format developed by Microsoft intended to facilitate easy transfer across different applications, programs, and technical environments.
Last Updated: 25 January 2011
English: RTFO
Welsh: Rhwymedigaeth Tanwydd Cludiant Adnewyddadwy
Status C
Subject: Law
Part of speech: Noun, Feminine, Singular
Definition: Renewable Transport Fuel Obligation
Last Updated: 29 September 2009
English: RTI
Welsh: Gwybodaeth Amser Real
Status C
Subject: Personnel
Part of speech: Noun, Feminine, Singular
Definition: Real Time Information
Last Updated: 12 December 2012
English: RTIs
Welsh: ymyriadau pontio
Status C
Subject: Social services
Part of speech: Noun, Plural
Definition: route transition interventions
Last Updated: 12 September 2008
English: RTM company
Welsh: cwmni RTM
Status A
Subject: Law
Part of speech: Noun, Masculine, Singular
Plural: cwmnïau RTM
Notes: Dyma'r ffurfiau byr a ddefnyddir am right-to-manage company / cwmni hawl-i-reoli.
Last Updated: 8 May 2025
English: RTO
Welsh: sefydliad ymchwil a thechnoleg
Status C
Subject: Education
Part of speech: Noun, Masculine, Singular
Definition: research and technology organisation
Last Updated: 24 May 2012
English: RTO
Welsh: SYTh
Status A
Subject: Education
Part of speech: Noun, Masculine, Singular
Context: Byddai’n canolbwyntio ar ehangu capasiti, gallu a seilwaith ymchwil ac arloesi (pobl, cyfarpar, labordai a sefydliadau) yn y sectorau AU, AB, SYTh (Sefydliadau Ymchwil a Thechnoleg) a sefydliadau diwydiannol yn y sector preifat
Notes: Dyma'r acronymau a ddefnyddir yn Gymraeg a Saesneg am Research and Technology Organisation / Sefydliad Ymchwil a Thechnoleg
Last Updated: 7 March 2018
English: RTP
Welsh: Rhaglen Athrawon Cofrestredig
Status B
Subject: Education
Part of speech: Noun, Feminine, Singular
Definition: Registered Teacher Programme
Last Updated: 13 February 2012
English: RTP
Welsh: partneriaeth twristiaeth rhanbarthol
Status C
Subject: Tourism and leisure
Part of speech: Noun, Feminine, Singular
Definition: regional tourism partnership
Last Updated: 19 July 2012
English: RT-PCR test
Welsh: prawf RT-PCR
Status B
Subject: Health
Part of speech: Noun, Masculine, Singular
Last Updated: 16 July 2020
English: RT-PCTR
Welsh: adwaith cadwynol polymeras trawsgrifiad gwrthdro
Status B
Subject: Health
Part of speech: Noun, Masculine, Singular
Last Updated: 22 July 2020
English: RTPI
Welsh: Y Sefydliad Cynllunio Trefol Brenhinol yng Nghymru
Status C
Subject: Planning
Part of speech: Noun, Masculine, Singular
Definition: Royal Town Planning Institute (Wales)
Last Updated: 10 January 2008
English: RTS
Welsh: Datganiad Technegol Rhanbarthol
Status C
Subject: Environment
Part of speech: Noun, Masculine, Singular
Definition: Regional Technical Statement
Last Updated: 16 November 2005
English: RTT
Welsh: Rhwng Atgyfeirio a Thriniaeth
Status B
Subject: Health
Part of speech: Proper noun
Notes: Dyma'r acronym Saesneg a ddefnyddir am Referral to Treatment.
Last Updated: 21 July 2022
English: RTT waiting times
Welsh: amseroedd aros Rhwng Atgyfeirio a Thriniaeth
Status A
Subject: Health
Part of speech: Noun, Masculine, Plural
Context: Referral to Treatment waiting times
Last Updated: 27 September 2012
English: Ruabon
Welsh: Rhiwabon
Status A
Subject: Place-names
Part of speech: Proper noun
Notes: Ward etholiadol ym Mwrdeistref Sirol Wrecsam. Dyma'r enwau a ragnodwyd yn Gymraeg a Saesneg ar gyfer y ward yng Ngorchymyn Bwrdeistref Sirol Wrecsam (Trefniadau Etholiadol) 2021.
Last Updated: 17 August 2022
English: rubber dam
Welsh: llen rwber
Status B
Subject: Health
Part of speech: Noun, Feminine, Singular
Plural: llenni rwber
Definition: Darn tenau a sgwâr o rwber â thwll ynddo a ddefnyddir i ynysu dant yn ystod triniaeth ddeintyddol.
Notes: Mae 'dental dam' yn gyfystyr.
Last Updated: 2 April 2020
English: rubble stone
Welsh: rwbel
Status C
Subject: Estates and Cadw
Part of speech: Noun, Masculine, Singular
Definition: Irregularly shaped, rough textured stone.
Last Updated: 1 November 2010
English: rubble stonework
Welsh: gwaith rwbel
Status C
Subject: Estates and Cadw
Part of speech: Noun, Masculine, Singular
Last Updated: 1 November 2010
English: rubblework
Welsh: gwaith rwbel
Status C
Subject: Estates and Cadw
Part of speech: Noun, Masculine, Singular
Last Updated: 1 November 2010
English: rubefacient
Welsh: eli lleddfu gwrido
Status B
Subject: Health
Part of speech: Noun, Masculine, Singular
Plural: elïau lleddfu gwrido
Last Updated: 6 November 2019
English: rubella
Welsh: rwbela
Status C
Subject: Health
Part of speech: Noun, Masculine, Singular
Context: Also known as "German measles".
Last Updated: 8 November 2004
English: rubella susceptibility
Welsh: tueddiad rwbela
Status C
Subject: Health
Part of speech: Verb
Context: Nid yw sgrinio am dueddiad rwbela yn ystod beichiogrwydd yn rhoi unrhyw amddiffyniad i’r baban yn y groth yn y beichiogrwydd presennol.
Last Updated: 11 January 2017
English: rubella susceptibility screening
Welsh: sgrinio am dueddiad rwbela
Status C
Subject: Health
Part of speech: Verb
Context: Nid yw sgrinio am dueddiad rwbela yn ystod beichiogrwydd yn rhoi unrhyw amddiffyniad i’r baban yn y groth yn y beichiogrwydd presennol.
Last Updated: 11 January 2017
English: rubidium
Welsh: rwbidiwm
Status A
Subject: Environment
Part of speech: Noun, Masculine, Singular
Definition: Symbol cemegol: Rb
Notes: Elfen gemegol. Gweler y canllawiau sillafu termau benthyg gwyddonol ar BydTermCymru.
Last Updated: 18 June 2025
English: Rudbaxton and Spittal
Welsh: Rudbaxton a Spittal
Status A
Subject: Place-names
Part of speech: Proper noun
Notes: Ward etholiadol yn Sir Benfro. Dyma'r enwau a ragnodwyd yn Gymraeg a Saesneg ar gyfer y ward yng Ngorchymyn Sir Benfro (Trefniadau Etholiadol) 2021.
Last Updated: 17 August 2022
English: Rudry
Welsh: Rhydri
Status A
Subject: Place-names
Part of speech: Proper noun
Definition: Caerffili
Last Updated: 14 August 2003
English: Rugby Football Union international fixture
Welsh: gornest ryngwladol Rygbi'r Undeb
Status B
Subject: Tourism and leisure
Part of speech: Noun, Feminine, Singular
Plural: gornestau rhyngwladol Rygbi'r Undeb
Last Updated: 2 July 2020
English: Rugby League World Cup
Welsh: Cwpan Rygbi Cynghrair y Byd
Status C
Subject: Tourism and leisure
Part of speech: Proper noun, Masculine, Singular
Last Updated: 29 October 2014
English: rugby sevens
Welsh: rygbi saith-bob-ochr
Status C
Subject: Tourism and leisure
Part of speech: Noun, Masculine, Singular
Last Updated: 27 January 2010
English: Rugby World Cup
Welsh: Cwpan Rygbi'r Byd
Status A
Subject: Tourism and leisure
Part of speech: Proper noun, Masculine, Singular
Last Updated: 5 November 2007
English: rule of court
Welsh: rheol llys
Status A
Subject: Law
Part of speech: Noun, Feminine, Singular
Plural: rheolau llys
Definition: rheol a wneir gan yr awdurdod a chanddo'r pwer i wneud rheolau neu orchmynion sy'n rheoleiddio arferion a threfniadaeth llys
Last Updated: 30 June 2022
English: rule of law
Welsh: rheol gyfreithiol
Status A
Subject: Law
Part of speech: Noun, Feminine, Singular
Definition: A valid legal proposition.
Notes: Sylwer ar y gwahaniaeth rhwng y cysyniad hwn a rule of law=rheolaeth y gyfraith.
Last Updated: 26 September 2019