TermCymru

Results are displayed in Welsh alphabetical order A-Y
Welsh: Osiris: Y Contract Menter Cyllid Preifat (PFI) ar gyfer Technoleg Gwybodaeth yng Nghynulliad Cenedlaethol Cymru
English: Osiris: The PFI Contract for Information Technology in the National Assembly for Wales
Status A
Subject: ICT
Part of speech: Noun, Masculine, Singular
Last updated: 23 January 2003
Welsh: OSKaR
English: OSKaR
Status C
Subject: Economic development
Definition: Observatory for a Sustainable Knowledge based Region.
Last updated: 11 October 2004
Welsh: osmiwm
English: osmium
Status A
Subject: Environment
Part of speech: Noun, Masculine, Singular
Definition: Symbol cemegol: Os
Notes: Elfen gemegol. Gweler y canllawiau sillafu termau benthyg gwyddonol ar BydTermCymru.
Last updated: 18 June 2025
Welsh: osôn
English: ozone
Status A
Subject: Environment
Part of speech: Noun, Masculine, Singular
Last updated: 11 July 2019
Welsh: Os na allwch ei ddal, allwch chi mo’i roi. Mae’r brechlyn wedi cyrraedd – ewch am eich pigiad nawr
English: If you can’t catch it, you can’t pass it on. The vaccine is here – get your jab now
Status C
Subject: Health
Context: Slogan on a swine flu poster.
Last updated: 27 January 2010
Welsh: os nad yw'r ymgeisydd wedi bod drwy broses graffu'r panel
English: unless the candidate has been scrutinised by the panel
Status C
Subject: Personnel
Last updated: 7 October 2002
Welsh: osôn ar lefel y ddaear
English: ground-level ozone
Status B
Subject: Environment
Part of speech: Noun, Masculine, Singular
Context: Nid yw osôn ar lefel y ddaear (O3) yn cael ei allyrru’n uniongyrchol, ond mae’n llygrydd eilaidd a ffurfir gan adweithiau cemegol yn yr atmosffer. Mae’r crynodiadau ar eu huchaf yn yr haf. Gall O3 deithio pellteroedd hir a chyrraedd crynodiadau uchel ymhell i ffwrdd o ffynhonnell y llygryddion gwreiddiol.
Last updated: 16 September 2024
Welsh: osôn ar lefel y ddaear
English: ground level ozone
Status C
Subject: Environment
Part of speech: Noun, Masculine, Singular
Last updated: 6 December 2005
Welsh: OSPAR
English: OSPAR
Status C
Subject: Environment
Part of speech: Noun, Feminine, Singular
Definition: Oslo-Paris Convention on the protection of the marine environment on the North East Atlantic
Context: Acronym ar gyfer Oslo-Paris Convention on the protection of the marine environment on the North East Atlantic / Confensiwn Oslo-Paris ar warchod yr amgylchedd morol yn rhan Ogledd-ddwyreiniol yr Iwerydd
Last updated: 5 March 2015
Welsh: osteopath
English: osteopath
Status B
Subject: Health
Part of speech: Noun, Masculine, Singular
Plural: osteopathiaid
Context: Ystyr “osteopath” (“osteopath”) yw osteopath cofrestredig o fewn ystyr y term “registered osteopath”, fel y’i nodir yn adran 41 o Ddeddf Osteopathiaid 1993, ac sy’n cael ei reoleiddio gan y Cyngor Osteopathig Cyffredinol.
Notes: Daw'r testun cyd-destunol o Reoliadau Unigolion sydd wedi eu Hesemptio o ran Triniaethau Arbennig (Cymru) 2024.
Last updated: 13 June 2025
Welsh: osteoporosis
English: osteoporosis
Status C
Subject: Health
Part of speech: Noun, Masculine, Singular
Last updated: 7 March 2008
Welsh: o stoc frodorol
English: native provenance
Status C
Subject: Agriculture
Part of speech: Adjective
Context: Am had/glasgoed.
Last updated: 24 November 2009
Welsh: o stoc leol
English: local provenance stock
Status C
Subject: Agriculture
Part of speech: Adjective
Last updated: 27 February 2006
Welsh: Os ydych chi'n yfed, peidiwch â meddwi
English: If you do do drink, don't do drunk
Status C
Subject: Education
Last updated: 9 January 2003
Welsh: OTF
English: OTF
Status A
Subject: Agriculture
Part of speech: Noun, Masculine, Singular
Notes: Dyma'r acronym a ddefnyddir yn y ddwy iaith am Officially TB Free / Statws heb TB swyddogol
Last updated: 23 March 2017
Welsh: OTFS
English: OTFS
Status A
Subject: Agriculture
Part of speech: Noun, Masculine, Singular
Notes: Dyma'r acronym a ddefnyddir yn y ddwy iaith am Officially TB Free Suspended / Statws heb TB swyddogol wedi'i atal
Last updated: 23 March 2017
Welsh: OTFW
English: OTFW
Status A
Subject: Agriculture
Part of speech: Noun, Masculine, Singular
Notes: Dyma'r acronym a ddefnyddir yn y ddwy iaith am Officially TB Free Withdrawn / Statws heb TB swyddogol wedi'i ddiddymu
Last updated: 23 March 2017
Welsh: otolith
English: otolith
Status A
Subject: Animals
Part of speech: Noun, Masculine, Singular
Plural: otolithau
Definition: Asgwrn bychan ym mhennau pysgod.
Last updated: 28 February 2019
Welsh: o un flwyddyn i'r llall
English: year on year
Status A
Subject: Finance and statistics
Part of speech: Noun, Feminine, Singular
Context: Gall "blwyddyn ar ôl blwyddyn" neu "o flwyddyn i flwyddyn" fod yn briodol yn ôl y cyd-destun.
Last updated: 10 February 2003
Welsh: Our Energy Challenge
English: Our Energy Challenge
Status C
Subject: Economic development
Definition: Dogfen ymgynghori Llywodraeth y DU ar ynni.
Last updated: 27 February 2006
Welsh: Overmonnow
English: Overmonnow
Status A
Subject: Place-names
Part of speech: Proper noun
Notes: Ward etholiadol yn Sir Fynwy. Dyma'r enwau a ragnodwyd yn Gymraeg a Saesneg ar gyfer y ward yng Ngorchymyn Sir Fynwy (Trefniadau Etholiadol) 2021.
Last updated: 17 August 2022
Welsh: o werth mawr i fywyd gwyllt
English: high wildlife value
Status B
Subject: Agriculture
Part of speech: Adjective
Last updated: 29 August 2012
Welsh: Owrtyn a De Maelor
English: Overton and Maelor South
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
Welsh: Oxfam Cymru
English: Oxfam Cymru
Status A
Subject: Social services
Part of speech: Neutral
Last updated: 10 March 2008
Welsh: PAAP
English: ACPC
Status B
Subject: Health
Part of speech: Noun, Masculine, Singular
Definition: Area Child Protection Committee
Last updated: 20 October 2003
Welsh: pabell ar drelar
English: trailer tent
Status C
Subject: Tourism and leisure
Part of speech: Noun, Feminine, Singular
Last updated: 14 November 2007
Welsh: pabell gloch
English: bell-tent
Status C
Subject: Tourism and leisure
Part of speech: Noun, Feminine, Singular
Last updated: 20 April 2012
Welsh: Pabi’r Coffáu
English: Poppies for Remembrance
Status A
Subject: Culture and the arts
Part of speech: Proper noun
Notes: Arddangosfa yn yr Amgueddfa Genedlaethol, Caerdydd
Last updated: 18 October 2018
Welsh: PAC
English: CAP
Status A
Subject: Agriculture
Part of speech: Noun, Masculine, Singular
Definition: Common Agricultural Policy
Last updated: 11 February 2004
Welsh: Pacistan
English: Pakistan
Status A
Subject: Place-names
Part of speech: Proper noun
Notes: Safonwyd yr enw hwn gan ddilyn yr egwyddorion a nodir yn yr erthygl 'Dynodi enwau gwladwriaethau, tiriogaethau a chenhedloedd diwladwriaeth' yn yr Arddulliadur.
Last updated: 17 August 2021
Welsh: Pacistanaidd
English: Pakistani
Status C
Subject: Personnel
Part of speech: Adjective
Definition: ethnic group
Last updated: 3 May 2005
Welsh: Pacistanaidd arall
English: other Pakistani
Status C
Subject: Personnel
Part of speech: Adjective
Last updated: 22 June 2007
Welsh: Pacistanaidd Mirpuri
English: Mirpuri Pakistani
Status C
Subject: Personnel
Part of speech: Adjective
Last updated: 22 June 2007
Welsh: pad cyffwrdd
English: touchpad
Status B
Subject: ICT
Part of speech: Noun, Masculine, Singular
Last updated: 19 July 2005
Welsh: padell wely
English: bed-pan
Status A
Subject: Health
Part of speech: Noun, Feminine, Singular
Context: Lluosog: padelli gwely.
Last updated: 6 January 2014
Welsh: PADGOS
English: CELLS
Status C
Subject: Welsh Government posts and departments
Definition: Children, Education, Lifelong Learning and Skills
Last updated: 4 February 2008
Welsh: pad graffeg
English: graphics pad
Status B
Subject: ICT
Part of speech: Noun, Masculine, Singular
Last updated: 19 July 2005
Welsh: pad gwresogi o dan y llawr
English: under floor heating pad
Status C
Subject: Environment
Part of speech: Noun, Masculine, Singular
Last updated: 31 August 2010
Welsh: padiau untro
English: disposable pads
Status C
Subject: Environment
Part of speech: Noun, Plural
Last updated: 25 June 2007
Welsh: pad leinin ysgafn
English: pantyliner
Status B
Subject: Health
Part of speech: Noun, Masculine, Singular
Plural: padiau leinin ysgafn
Last updated: 9 April 2020
Welsh: padlfwrdd
English: paddleboard
Status C
Subject: Tourism and leisure
Part of speech: Noun, Masculine, Singular
Plural: padlfyrddau
Last updated: 1 August 2018
Welsh: padlfyrddio
English: paddleboard
Status C
Subject: Tourism and leisure
Part of speech: Verb
Last updated: 1 August 2018
Welsh: padlwr
English: paddler
Status A
Subject: Tourism and leisure
Part of speech: Noun, Masculine, Singular
Context: Lluosog: padlwyr.
Last updated: 27 February 2014
Welsh: pad sblasio
English: splash pad
Status C
Subject: Tourism and leisure
Part of speech: Noun, Masculine, Singular
Definition: A splashpad is an area for water play that has no standing water. This is said to eliminate the need for lifeguards or other supervision, as there is practically no risk of drowning.
Last updated: 20 April 2012
Welsh: paentfarc
English: paintmark
Status C
Subject: Agriculture
Part of speech: Noun, Masculine, Singular
Definition: pig industry
Last updated: 15 August 2003
Welsh: paent gweadog
English: textured paint
Status C
Subject: Housing
Part of speech: Noun, Masculine, Singular
Definition: Very thick paint, often containing silicon.
Last updated: 11 July 2008
Welsh: paent rhag tyfiant
English: antifouling
Status C
Subject: Environment
Part of speech: Noun, Masculine, Singular
Definition: Paent cemegol i gadw pethau rhag tyfu ar waelodion llongau.
Last updated: 11 May 2006
Welsh: paent sy'n caniatáu anadladwy
English: breathable paint
Status C
Subject: Estates and Cadw
Part of speech: Noun, Masculine, Singular
Last updated: 20 January 2006
Welsh: pafinau concrit
English: concrete pavements
Status C
Subject: Transport
Part of speech: Noun, Plural
Last updated: 10 March 2006
Welsh: PAI
English: PAI
Status C
Subject: Agriculture
Definition: Positional Accuracy Improvement project
Context: Prosiect i gysoni mapiau’r Llywodraeth â mapiau diweddara’ OS.
Last updated: 19 August 2010