TermCymru

Results are displayed in English alphabetical order A-Z
English: on-farm composting
Welsh: compostio ar y fferm
Status C
Subject: Waste
Part of speech: Verb
Last Updated: 14 September 2004
English: On-farm Health and Safety Charter for Wales
Welsh: Siarter Cymru ar gyfer Iechyd a Diogelwch ar y Fferm
Status A
Subject: Agriculture
Part of speech: Proper noun, Feminine, Singular
Last Updated: 13 February 2012
English: on-farm inspection
Welsh: archwiliad ar y fferm
Status C
Subject: Agriculture
Part of speech: Noun, Masculine, Singular
Definition: archwilio’ch fferm
Last Updated: 29 July 2003
English: on-farm surveillance regime for TB
Welsh: y drefn ar y fferm i gadw golwg am TB
Status B
Subject: Agriculture
Part of speech: Noun, Feminine, Singular
Last Updated: 8 March 2012
English: ongoing cost
Welsh: cost
Status C
Subject: Finance and statistics
Part of speech: Noun, Feminine, Singular
Last Updated: 27 January 2004
English: ongoing costs
Welsh: costau rheolaidd
Status C
Subject: Finance and statistics
Part of speech: Noun, Plural
Last Updated: 27 January 2004
English: ongoing regulatory contact
Welsh: cyswllt rheoleiddiol parhaus
Status B
Subject: Housing
Part of speech: Noun, Masculine, Singular
Last Updated: 12 January 2012
English: ongoing symptomatic COVID‑19
Welsh: COVID-19 parhaus symptomatig
Status B
Subject: Health
Part of speech: Noun, Masculine, Singular
Last Updated: 4 February 2021
English: onions
Welsh: winwns/nionod
Status B
Subject: Food
Part of speech: Noun, Plural
Context: Defnyddir termau gwahanol yn ne a gogledd Cymru.
Last Updated: 27 January 2004
English: on line
Welsh: ar linell
Status C
Subject: Transport
Part of speech: Adjective
Definition: In relation to roads.
Last Updated: 6 May 2005
English: online
Welsh: ar-lein
Status A
Subject: ICT
Part of speech: Adjective
Definition: Ar gael ar y Rhyngrwyd, neu a ddefnyddir drwy gyfrwng y Rhyngrwyd.
Notes: Yn orgraffyddol nid oes angen y cysylltnod yn “ar-lein”, fel ansoddair nac fel adferf. Serch hynny, mae’r ffurf â chysylltnod wedi hen blwyfo yn Gymraeg.
Last Updated: 17 December 2020
English: Online Absent Voting Application system
Welsh: system Ymgeisio Ar-lein am Bleidlais Absennol
Status B
Subject: Politics
Part of speech: Noun, Feminine, Singular
Definition: System electronig ar gyfer gwneud cais am bleidlais drwy'r post neu bleidlais drwy ddirprwy.
Notes: Defnyddir yr acronym OAVA yn Saesneg.
Last Updated: 18 June 2025
English: Online Engagement and e-Government Gateway
Welsh: Ymgysylltu Ar-lein a Phorth e-Lywodraeth
Status C
Subject: ICT
Part of speech: Verb
Last Updated: 2 August 2010
English: Online for a Better Wales
Welsh: Cymru Ar-lein
Status A
Subject: Local government
Part of speech: Noun, Feminine, Singular
Last Updated: 20 May 2004
English: online grooming
Welsh: grŵmio ar-lein
Status B
Subject: Justice and order
Part of speech: Verb
Last Updated: 4 March 2026
English: online improvement
Welsh: gwelliant ar y ffordd bresennol
Status C
Subject: Transport
Part of speech: Noun, Masculine, Singular
Plural: gwelliannau ar y ffordd bresennol
Definition: ‘Online’ means works that are within areas of existing highway e.g. an existing section of road that needs to be dug out and re-modelled.
Last Updated: 13 December 2017
English: online marketplace
Welsh: marchnadle ar-lein
Status B
Subject: ICT
Part of speech: Noun, Masculine, Singular
Plural: marchnadleoedd ar-lein
Definition: Yng nghyd-destun Rheoliadau Bwyd (Hyrwyddo a Chyflwyno) (Cymru) 2025, unrhyw feddalwedd (gan gynnwys gwefan, rhan o wefan, neu raglen) a ddefnyddir i gynnig cynhyrchion y busnes cymhwysol ar werth i ddefnyddwyr.
Notes: Daw'r testun cyd-destunol o Reoliadau Bwyd (Hyrwyddo a Chyflwyno) (Cymru) 2025
Last Updated: 13 June 2025
English: online message boards
Welsh: byrddau negeseuon ar-lein
Status C
Subject: ICT
Part of speech: Noun, Plural
Last Updated: 21 October 2008
English: online portal
Welsh: porth ar-lein
Status B
Subject: Finance and statistics
Part of speech: Noun, Masculine, Singular
Plural: pyrth ar-lein
Notes: Yng nghyd-destun y dreth gyngor ac ardrethi annomestig.
Last Updated: 31 January 2024
English: online publication
Welsh: cyhoeddiad ar-lein
Status C
Subject: General
Part of speech: Noun, Masculine, Singular
Definition: A non-print work which is accessed or delivered by means of the internet (including an electronic publication which comprises material packaged and filtered in response to an enquiry from a user) but not including a private intranet.
Last Updated: 25 January 2011
English: Online Recruitment Communication Centre
Welsh: Canolfan Cyfathrebu Recriwtio Ar-lein
Status C
Subject: Personnel
Part of speech: Noun, Feminine, Singular
Last Updated: 4 January 2012
English: Online Safety Act 2023
Welsh: Deddf Diogelwch Ar-lein 2023
Status A
Subject: Law
Part of speech: Noun, Feminine, Singular
Notes: Teitl cwrteisi ar ddeddfwriaeth sydd ar gael yn Saesneg yn unig.
Last Updated: 1 March 2024
English: Online Safety Bill
Welsh: Y Bil Diogelwch Ar-lein
Status B
Subject: Titles of legislation
Part of speech: Noun, Masculine, Singular
Notes: Teitl cwrteisi ar ddarn o ddeddfwriaeth ddrafft gan Lywodraeth y DU sydd ar gael yn Saesneg yn unig.
Last Updated: 19 May 2022
English: online self assessment
Welsh: hunanasesiad ar-lein
Status C
Subject: Environment
Part of speech: Noun, Masculine, Singular
Last Updated: 21 July 2011
English: online service provider
Welsh: darparwr gwasanaeth ar-lein
Status B
Subject: ICT
Part of speech: Noun, Masculine, Singular
Last Updated: 19 July 2005
English: Online Services
Welsh: Gwasanaethau Ar-lein     
Status C
Subject: ICT
Part of speech: Noun, Plural
Last Updated: 7 June 2011
English: online sexual abuse
Welsh: cam-drin rhywiol ar-lein
Status B
Subject: Justice and order
Part of speech: Verb
Notes: Defnyddir y berfenw gan amlaf yng ngwaith Gwasanaeth Cyfieithu Llywodraeth Cymru, ond gellir defnyddio'r ffurf enwol "camdriniaeth" hefyd os yw'r cyd-destun yn galw am hynny, ee wrth gyfeirio at un achos o gam-drin rhywiol ar-lein.
Last Updated: 4 March 2026
English: onlookers
Welsh: gwylwyr
Status C
Subject: Education
Part of speech: Noun, Plural
Definition: in the context of bullying
Last Updated: 27 September 2006
English: on-off costs
Welsh: costau untro
Status C
Subject: Economic development
Part of speech: Noun, Plural
Last Updated: 5 September 2003
English: on-peak electricity
Welsh: trydan oriau brig
Status C
Subject: Environment
Part of speech: Noun, Masculine, Singular
Last Updated: 10 January 2003
English: on position
Welsh: safle ymlaen
Status B
Subject: ICT
Part of speech: Noun, Feminine, Singular
Last Updated: 19 July 2005
English: ONR
Welsh: Y Swyddfa Reoleiddio Niwclear
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
English: on remand
Welsh: ar remánd
Status C
Subject: Law
Part of speech: Verb
Context: Having been remanded.
Last Updated: 4 May 2011
English: on-resonant
Welsh: ar-gyseiniol
Status B
Subject: Economic development
Part of speech: Adjective
Context: Nuclear physics
Last Updated: 16 March 2012
English: ONS
Welsh: SYG
Status B
Subject: Finance and statistics
Part of speech: Noun, Feminine, Singular
Definition: Office for National Statistics
Notes: Deellir fod y Swyddfa Ystadegau Gwladol yn ffafrio defnyddio acronym Cymraeg ar eu henw.
Last Updated: 25 July 2022
English: on-screen assistance
Welsh: cymorth sgrin
Status B
Subject: ICT
Part of speech: Noun, Masculine, Singular
Last Updated: 19 July 2005
English: on-screen encyclopaedia
Welsh: gwyddoniadur sgrin
Status B
Subject: ICT
Part of speech: Noun, Masculine, Singular
Last Updated: 19 July 2005
English: on-screen menu
Welsh: dewislen sgrin
Status B
Subject: ICT
Part of speech: Noun, Feminine, Singular
Last Updated: 19 July 2005
English: ONS Data Explorer
Welsh: Archwiliwr Data SYG
Status A
Subject: Finance and statistics
Part of speech: Noun, Masculine, Singular
Definition: Software for handling data sets.
Last Updated: 20 September 2012
English: onset
Welsh: dechrau
Status B
Subject: Health
Part of speech: Noun, Masculine, Singular
Notes: Yng nghyd-destun salwch neu symptomau, ac ati.
Last Updated: 25 June 2020
English: onshore
Welsh: ar y tir
Status C
Subject: Environment
Part of speech: Adjective
Last Updated: 8 December 2004
English: onshore oil and gas operations
Welsh: gweithrediadau olew a nwy ar y tir
Status C
Subject: Environment
Part of speech: Noun, Plural
Last Updated: 23 July 2003
English: Onshore Renewable Energy Policy Team
Welsh: Y Tîm Polisi Ynni Adnewyddadwy ar y Tir
Status A
Subject: Place-names
Part of speech: Noun, Masculine, Singular
Last Updated: 21 September 2017
English: onshore resource management plan
Welsh: cynllun rheoli adnoddau’r glannau
Status C
Subject: Environment
Part of speech: Noun, Masculine, Singular
Last Updated: 19 December 2011
English: onshore substation
Welsh: is-orsaf ar y tir
Status C
Subject: Environment
Part of speech: Noun, Feminine, Singular
Last Updated: 8 December 2004
English: onshore wind
Welsh: ynni gwynt ar y tir
Status B
Subject: Environment
Part of speech: Noun, Masculine, Singular
Context: Mae Llywodraeth Cymru wedi gweithio gyda’r diwydiant ynni gwynt ar y tir i gynnal asesiad o’r cyf eoedd i sicrhau buddiannau economaidd a chymunedol o ddatblygiadau ynni gwynt masnachol yng Nghymru.
Last Updated: 29 January 2026
English: onshore wind farm
Welsh: fferm wynt ar y tir
Status C
Subject: Environment
Part of speech: Noun, Feminine, Singular
Last Updated: 13 August 2003
English: on-slip road
Welsh: ffordd ymuno
Status A
Subject: Transport
Part of speech: Noun, Feminine, Singular
Plural: ffyrdd ymuno
Definition: ffordd (unffordd, fel arfer) fer sy'n galluogi traffig i ymuno â phriffordd
Context: Y darn hwnnw o brif gerbytffordd tua'r dwyrain y draffordd o'r man lle y mae'r ffordd ymadael tua'r dwyrain wrth Gyffordd 24 Coldra yn gwyro o brif gerbytffordd tua'r dwyrain y draffordd i'r man lle y mae'r ffordd ymuno tua'r dwyrain wrth Gyffordd 23A Magwyr yn uno â phrif gerbytffordd tua'r dwyrain y draffordd.
Last Updated: 16 November 2021
English: ONS Project Board
Welsh: Bwrdd Prosiect y SYG
Status C
Subject: Finance and statistics
Part of speech: Noun, Masculine, Singular
Definition: Office of National Statistics
Last Updated: 19 July 2006
English: ONS Regional Accounts
Welsh: Cyfrifon Rhanbarthol ONS
Status C
Subject: Finance and statistics
Part of speech: Noun, Plural
Last Updated: 23 December 2005