TermCymru

Results are displayed in English alphabetical order A-Z
English: On the road to World class Training and Education
Welsh: Ar y Ffordd i Hyfforddiant ac Addysg o Safon Fyd-Eang
Status B
Subject: Education
Definition: Cyhoeddiad gan ELWa
Last Updated: 6 November 2003
English: On-The-Spot Check
Welsh: Archwiliad ar y Fferm
Status B
Subject: Agriculture
Part of speech: Noun, Masculine, Singular
Plural: Archwiliadau ar y Fferm
Notes: Mae’r term Saesneg hwn yn gyfystyr ag On-The-Spot Control. Defnyddir yr acronym OTSC yn gyffredin.
Last Updated: 1 October 2025
English: On-The-Spot Control
Welsh: Archwiliad ar y Fferm
Status B
Subject: Agriculture
Part of speech: Noun, Masculine, Singular
Plural: Archwiliadau ar y Fferm
Notes: Mae’r term Saesneg hwn yn gyfystyr ag On-The-Spot Check. Defnyddir yr acronym OTSC yn gyffredin.
Last Updated: 1 October 2025
English: on the spot fines
Welsh: dirwyon yn y fan a'r lle
Status C
Subject: Transport
Part of speech: Noun, Plural
Last Updated: 8 October 2003
English: on track
Welsh: ar y trywydd iawn
Status C
Subject: General
Part of speech: Verb
Last Updated: 14 June 2004
English: on-trade
Welsh: mewnfasnach
Status A
Subject: Health
Part of speech: Noun, Feminine, Singular
Last Updated: 26 November 2012
English: on trust
Welsh: ar ymddiriedolaeth
Status B
Subject: Law
Part of speech: Preposition
Context: Mae adran 151 yn gwneud darpariaeth ynghylch Gweinidogion Cymru yn derbyn rhodd eiddo ar ymddiriedolaeth er mwyn defnyddio'r incwm a ddaw o'r eiddo ar gyfer atgyweirio a chynnal a chadw adeilad y mae Gweinidogion Cymru yn ystyried ei fod o ddiddordeb hanesyddol neu bensaernïol eithriadol. 
Last Updated: 25 April 2024
English: onward disclosure control
Welsh: rheolaeth ar ddatgelu o hynny ymlaen
Status A
Subject: Finance and statistics
Part of speech: Noun, Feminine, Singular
Context: HMRC term
Last Updated: 10 June 2014
English: onward referral
Welsh: atgyfeirio ymlaen
Status A
Subject: Health
Part of speech: Verb
Notes: Mae'n bosibl y gallai'r ffurf enwol 'atgyfeiriad ymlaen' fod yn addas mewn rhai cyd-destunau.
Last Updated: 25 November 2022
English: onward service
Welsh: gwasanaeth cysylltiol
Status B
Subject: Transport
Part of speech: Noun, Masculine, Singular
Plural: gwasanaethau cysylltiol
Last Updated: 23 July 2020
English: onward transmission
Welsh: trosglwyddo ymhellach
Status B
Subject: Health
Part of speech: Verb
Context: Drwy ddefnyddio’r profion cyflym newydd i sgrinio pobl, mae potensial i ganfod yr haint yn gynharach, gan leihau’r risg o’i drosglwyddo ymhellach.
Notes: Yng nghyd-destun COVID-19.
Last Updated: 21 December 2020
English: oospore
Welsh: öosbôr
Status C
Subject: Plants
Part of speech: Noun, Masculine, Singular
Definition: sbôr rhywiol
Last Updated: 1 September 2010
English: ooze
Welsh: llysnafedd
Status C
Subject: Environment
Part of speech: Noun, Masculine, Singular
Last Updated: 28 September 2005
English: opacity in media
Welsh: anrhyloywder yn y cyfryngau
Status B
Subject: Health
Part of speech: Noun, Masculine, Singular
Plural: anrhyloywderau yn y cyfryngau
Notes: Mae media/cyfryngau yn y termau hyn yn cyfeirio at yr ocular media/cyfryngau ociwlar.
Last Updated: 25 March 2024
English: OPAN Ageing Research Wales
Welsh: OPAN Ymchwil Heneiddio Cymru
Status A
Subject: Social services
Definition: Dyma sydd ar logo OPAN.
Last Updated: 21 July 2008
English: OPAN Wales
Welsh: OPAN Cymru
Status A
Subject: Social services
Part of speech: Noun, Masculine, Singular
Definition: Older People and Ageing Research and Development Network
Last Updated: 21 July 2008
English: OPAS
Welsh: Gwasanaeth Cynghori ar Bensiynau
Status C
Subject: Finance and statistics
Part of speech: Noun, Masculine, Singular
Definition: The Pensions Advisory Service
Last Updated: 5 February 2008
English: OPCS
Welsh: Swyddfa Cyfrifiadau ac Arolygon Poblogaeth
Status C
Subject: Finance and statistics
Part of speech: Noun, Singular
Definition: Office of Population Censuses and Surveys
Last Updated: 28 March 2008
English: open
Welsh: agor
Status B
Subject: ICT
Part of speech: Verb
Last Updated: 19 July 2005
English: open-access, carrier-neutral, fibre network
Welsh: rhwydwaith o ffeibrau mynediad agored, cludydd niwtral
Status C
Subject: ICT
Part of speech: Noun, Masculine, Singular
Last Updated: 19 September 2008
English: open-access drop-in services
Welsh: gwasanaethau galw heibio mynediad agored
Status C
Subject: Social services
Part of speech: Noun, Plural
Last Updated: 21 October 2008
English: open access play
Welsh: chwarae mynediad agored
Status C
Subject: Education
Part of speech: Noun, Masculine, Singular
Last Updated: 14 April 2004
English: open access play scheme
Welsh: cynllun chwarae mynediad agored
Status C
Subject: Education
Part of speech: Noun, Masculine, Singular
Last Updated: 26 July 2004
English: open a highway to public traffic
Welsh: agor priffordd i draffig cyhoeddus
Status C
Subject: Transport
Part of speech: Verb
Last Updated: 12 September 2007
English: open angle glaucoma
Welsh: glawcoma ongl agored
Status B
Subject: Health
Part of speech: Noun, Masculine, Singular
Definition: Math o glawcoma cynradd lle bydd yr ongl ddraenio, sy'n rhan o adeiladwaith y llygad, ar agor fel arfer ac yn caniatáu i'r hylif dyfrllyd ddraenio o'r ardal o flaen pelen y llygad.
Last Updated: 25 March 2024
English: open book accounting provision
Welsh: amod i gadw cyfrifon agored
Status C
Subject: Finance and statistics
Part of speech: Noun, Masculine, Singular
Definition: amod mewn contract sy'n rhoi'r hawl i'r prynwr weld cyfrifon y cyflenwr
Last Updated: 24 February 2003
English: open cast coal mine
Welsh: gwaith glo brig
Status A
Subject: Planning
Part of speech: Noun, Masculine, Singular
Plural: gweithfeydd glo brig
Last Updated: 23 February 2026
English: open-cast mine
Welsh: mwynglawdd brig
Status C
Subject: Economic development
Part of speech: Noun, Masculine, Singular
Plural: mwyngloddiau brig
Context: Yn caniatáu i ryddhad rhag treth gael ei gymhwyso i warediad trethadwy deunydd sy'n cynnwys deunydd cymwys, a waredir mewn safle tirlenwi awdurdodedig (neu ran o safle o'r fath), os oedd y safle'n cael ei ddefnyddio fel mwynglawdd brig neu chwarel.
Last Updated: 9 August 2017
English: open-cast mining
Welsh: mwyngloddio brig
Status A
Subject: Environment
Part of speech: Verb
Notes: Term o Fil Treth Gwarediadau Tirlenwi (Cymru) yw hwn.
Last Updated: 15 August 2016
English: Open College Network
Welsh: Rhwydwaith y Coleg Agored
Status C
Subject: Education
Part of speech: Noun, Masculine, Singular
Definition: OCN
Last Updated: 17 March 2004
English: Open College Network Wales
Welsh: Rhwydwaith Coleg Agored Cymru
Status A
Subject: Education
Part of speech: Noun, Masculine, Singular
Definition: OCN Wales
Last Updated: 7 April 2009
English: open contract
Welsh: contract agored
Status C
Subject: Law
Part of speech: Noun, Masculine, Singular
Plural: contractau agored
Definition: An open contract is one which has been tendered competitvely on the open market.
Notes: Term anffurfiol. Cymharer � reserved contract / contract neilltuol
Last Updated: 23 March 2017
English: open country
Welsh: tir agored
Status C
Subject: Environment
Part of speech: Noun, Masculine, Singular
Last Updated: 14 April 2004
English: open countryside
Welsh: cefn gwlad agored
Status C
Subject: Environment
Part of speech: Noun, Masculine, Singular
Last Updated: 23 July 2003
English: open crossing
Welsh: croesfan agored
Status B
Subject: Justice and order
Part of speech: Noun, Feminine, Singular
Last Updated: 30 August 2012
English: open data
Welsh: data agored
Status A
Subject: ICT
Part of speech: Noun, Plural
Context: Cynhyrchwyd yr adroddiad hwn yn bennaf fel adroddiad rhyngweithiol ar-lein er mwyn manteisio i'r eithaf ar effaith ac effeithlonrwydd defnyddio gwasanaethau data agored Llywodraeth Cymru.
Last Updated: 25 July 2019
English: Open Data Plan
Welsh: Cynllun Data Agored
Status A
Subject: ICT
Part of speech: Noun, Masculine, Singular
Last Updated: 5 July 2017
English: open day
Welsh: diwrnod agored
Status A
Subject: Education
Part of speech: Noun, Masculine, Singular
Last Updated: 5 November 2007
English: Open Doors
Welsh: Drysau Agored
Status A
Subject: Culture and the arts
Part of speech: Proper noun
Definition: Cadw project
Last Updated: 18 March 2014
English: open door trap
Welsh: magl drws agored
Status C
Subject: Environment
Part of speech: Noun, Feminine, Singular
Last Updated: 16 January 2013
English: open-ended
Welsh: penagored
Status B
Subject: Education
Part of speech: Adjective
Context: Dylem gynnig cyfleoedd ac adnoddau penagored i bob plentyn gynllunio, creu ac addasu’r mannau lle maent yn chwarae.
Notes: Diffiniad y Fframwaith Ansawdd Chwarae, Dysgu a Gofal Plentyndod Cynnar: 'Heb derfyn na chanlyniad wedi’i gynllunio, fel y gall chwarae a dysgu ddatblygu mewn sawl ffordd.'
Last Updated: 2 October 2024
English: open-ended investment company
Welsh: cwmni buddsoddi penagored
Status B
Subject: Law
Part of speech: Noun, Masculine, Singular
Plural: cwmnïau buddsoddi penagored
Notes: Term o Fil Treth Trafodiadau Tir a Gwrthweithio Osgoi Trethi Datganoledig (Cymru) 2016.
Last Updated: 17 August 2016
English: open file
Welsh: agor ffeil
Status B
Subject: ICT
Part of speech: Verb
Last Updated: 19 July 2005
English: open flame
Welsh: fflam agored
Status C
Subject: Fire and rescue
Part of speech: Noun, Feminine, Singular
Last Updated: 7 December 2005
English: Open for Business Scheme
Welsh: Cynllun Ar Agor am Fusnes
Status A
Subject: Economic development
Part of speech: Proper noun, Masculine, Singular
Definition: Rates relief scheme.
Last Updated: 31 March 2014
English: open framework
Welsh: fframwaith agored
Status B
Subject: Law
Part of speech: Noun, Masculine, Singular
Plural: fframweithiau agored
Context: An “open framework” is a scheme of frameworks that provides for the award of successive frameworks on substantially the same terms.
Notes: Term o faes caffael. Ychwanegwyd i’r gronfa yn sgil Deddf Caffael 2023 (deddfwriaeth Llywodraeth y DU, sydd ar gael yn Saesneg yn unig) a Rheoliadau Caffael (Cymru) 2024. Daw’r frawddeg gyd-destunol Saesneg o Ddeddf Caffael 2023.
Last Updated: 31 July 2024
English: Open Geography
Welsh: Open Geography
Status A
Subject: Finance and statistics
Part of speech: Proper noun
Notes: Enw brand ar borth penodol ar wefan y Swyddfa Ystadegau Gwladol.
Last Updated: 11 March 2026
English: open government
Welsh: llywodraeth agored
Status A
Subject: Politics
Part of speech: Noun, Feminine, Singular
Last Updated: 14 January 2003
English: Open Government and Constitutional Affairs Division
Welsh: Yr Is-adran Llywodraeth Agored a Materion Cyfansoddiadol
Status A
Subject: Welsh Government posts and departments
Part of speech: Noun, Feminine, Singular
Last Updated: 10 January 2003
English: Open Government Licence
Welsh: Y Drwydded Llywodraeth Agored
Status B
Subject: ICT
Part of speech: Noun, Feminine, Singular
Last Updated: 8 September 2022