TermCymru

Results are displayed in English alphabetical order A-Z
English: operative provision
Welsh: darpariaeth weithredol
Status B
Subject: Law
Part of speech: Noun, Feminine, Singular
Plural: darpariaethau gweithredol
Context: Mae asesiad effaith reoleiddiol o'r effaith y bydd yr offeryn hwn yn ei chael ar gostau busnes wedi ei baratoi a'i osod yn llyfrgell Tŷ'r Cyffredin a llyfrgell Tŷ'r Arglwyddi ynghyd â nodyn trosi sy'n nodi sut y trosir darpariaethau gweithredol Cyfarwyddebau'r Comisiwn 2005/6, 2005/7 a 2005/8 yn gyfraith ddomestig gan y Rheoliadau hyn.
Last Updated: 29 September 2022
English: operator
Welsh: gweithredwr
Status B
Subject: ICT
Part of speech: Noun, Masculine, Singular
Last Updated: 19 July 2005
English: operator
Welsh: gweithredwr
Status A
Subject: Transport
Part of speech: Noun, Masculine, Singular
Plural: gweithredwyr
Notes: Yng nghyd-destun trafnidiaeth gyhoeddus.
Last Updated: 4 June 2018
English: operator of last resort
Welsh: gweithredwr dewis olaf
Status B
Subject: Transport
Part of speech: Noun, Masculine, Singular
Plural: gweithredwyr dewis olaf
Definition: Busnes a fydd yn rhedeg masnachfraint reilffyrdd, pan fydd cwmni gweithredu trenau yn methu gwneud hynny.
Last Updated: 23 May 2024
English: OPG
Welsh: Swyddfa'r Gwarcheidwad Cyhoeddus
Status A
Subject: Law
Part of speech: Noun, Feminine, Singular
Definition: Office of the Public Guardian
Last Updated: 23 January 2008
English: ophthalmic
Welsh: offthalmig
Status B
Subject: Health
Part of speech: Adjective
Definition: yn ymwneud â'r llygaid
Last Updated: 16 April 2003
English: Ophthalmic Diagnostic and Treatment Centre
Welsh: Canolfan Diagnosteg a Thriniaeth Offthalmig
Status C
Subject: Health
Part of speech: Noun, Feminine, Singular
Definition: ODTC
Last Updated: 11 January 2013
English: ophthalmic list
Welsh: rhestr offthalmig
Status C
Subject: Health
Part of speech: Noun, Feminine, Singular
Plural: rhestrau offthalmig
Last Updated: 7 September 2023
English: ophthalmic medical practitioner
Welsh: ymarferydd meddygol offthalmig
Status A
Subject: Health
Part of speech: Noun, Masculine, Singular
Plural: ymarferwyr meddygol offthalmig
Last Updated: 25 November 2022
English: ophthalmic service
Welsh: gwasanaeth offthalmig
Status A
Subject: Health
Part of speech: Noun, Masculine, Singular
Plural: gwasanaethau offthalmig
Last Updated: 25 November 2022
English: Ophthalmic Specialist Advisory Group
Welsh: Grŵp Cynghori Arbenigwyr Offthalmig
Status A
Subject: Health
Part of speech: Noun, Masculine, Singular
Definition: OSAG
Last Updated: 30 October 2012
English: ophthalmologist
Welsh: offthalmolegydd
Status A
Subject: Health
Part of speech: Noun, Masculine, Singular
Plural: offthalmolegwyr
Definition: Meddyg sy'n arbenigo mewn trin problemau â'r llygaid, ac sydd wedi ei hyfforddi i gynnal llawdriniaethau ar y llygad.
Last Updated: 25 November 2022
English: ophthalmology
Welsh: offthalmoleg
Status B
Subject: Health
Part of speech: Noun, Feminine, Singular
Last Updated: 4 June 2020
English: O-PIA
Welsh: Cyfarfod Asesu gan Swyddogion Cyn Cyflwyno
Status B
Subject: Politics
Part of speech: Noun, Masculine, Singular
Notes: Dyma’r acronym Saesneg a ddefnyddir yn gyffredin am Officials Pre-Introduction Assessment, sef math o gyfarfod a gynhelir yn ystod y broses o lunio Biliau yn Llywodraeth Cymru.
Last Updated: 16 May 2024
English: opinion paper
Welsh: papur safbwynt
Status A
Subject: Personnel
Part of speech: Noun, Masculine, Singular
Last Updated: 25 November 2004
English: Opinion Pod
Welsh: Caban Cyfrannu
Status A
Subject: General
Part of speech: Noun, Masculine, Singular
Context: Welsh Assembly Government video booth at national events.
Last Updated: 20 May 2010
English: opinion poll
Welsh: pôl piniwn
Status B
Subject: Finance and statistics
Part of speech: Noun, Masculine, Singular
Plural: polau piniwn
Definition: Arolwg o sampl cynrychioliadol o bobl er mwyn casglu gwybodaeth am farn ar fater penodol.
Notes: Weithiau defnyddir y ffurf fer poll/pôl am y cysyniad hwn. Sylwer ar y gwahaniaeth ystyr rhwng 'poll' ym maes cyllid ac ystadegau a 'poll' ym maes gwleidyddiaeth.
Last Updated: 28 May 2025
English: opioid substitute treatment
Welsh: triniaethau amnewidion opioid
Status B
Subject: Health
Part of speech: Noun, Feminine, Singular
Plural: triniaethau amnewidion opioid
Last Updated: 12 March 2020
English: OPM
Welsh: Y Swyddfa Rheolaeth Gyhoeddus
Status A
Subject: Politics
Part of speech: Proper noun, Feminine, Singular
Definition: Office for Public Management
Last Updated: 12 May 2006
English: OPOAO
Welsh: cynhyrchion eraill yn dod o anifeiliaid
Status C
Subject: Agriculture
Part of speech: Noun, Plural
Definition: other products of animal origin
Last Updated: 9 October 2008
English: Op Plan
Welsh: Cynllun Gweithredol
Status A
Subject: Personnel
Part of speech: Noun, Masculine, Singular
Definition: Operational Plan
Last Updated: 15 July 2005
English: opportunist
Welsh: un sy'n bachu cyfle
Status B
Subject: Justice and order
Part of speech: Noun, Masculine, Singular
Last Updated: 30 August 2012
English: opportunist thief
Welsh: lleidr bachu cyfle
Status B
Subject: Justice and order
Part of speech: Noun, Masculine, Singular
Last Updated: 30 August 2012
English: Opportunities Day
Welsh: Diwrnod Cyfleoedd
Status C
Subject: Personnel
Part of speech: Noun, Masculine, Singular
Definition: Trefnwyd gan Gyrfa Cymru
Last Updated: 8 November 2006
English: Opportunities in the Countryside
Welsh: Cyfleoedd yng Nghefn Gwlad
Status C
Subject: Environment
Part of speech: Noun, Plural
Definition: Cynhelir ar Faes Sioe Frenhinol Cymru, Hydref 2007.
Last Updated: 12 September 2007
English: Opportunity Age: Meeting the challenges of ageing in the 21st century
Welsh: Oes Cyfle: Ymateb i heriau heneiddio yn yr 21ain ganrif
Status C
Subject: Social services
Part of speech: Noun, Feminine, Singular
Definition: Cyhoeddwyd gan Lywodraeth EM, 2005.
Last Updated: 17 October 2005
English: opportunity cost
Welsh: cost cyfle
Status C
Subject: Finance and statistics
Part of speech: Noun, Feminine, Singular
Definition: The cost we pay when we give up something to get something else. There can be many alternatives that we give up to get something else, but the opportunity cost of a decision is the most desirable alternative we give up to get what we want.
Last Updated: 19 July 2006
English: opportunity costs
Welsh: costau cyfle
Status C
Subject: Finance and statistics
Part of speech: Noun, Feminine, Plural
Last Updated: 1 June 2012
English: opportunity for access, growth and progression
Welsh: cyfle i gael mynediad at waith, i dyfu ac i gamu ymlaen
Status B
Subject: Economic development
Part of speech: Noun, Masculine, Singular
Notes: Un o chwe nodwedd gwaith teg
Last Updated: 15 May 2019
English: Opportunity for All: One Year On: Making a Difference: A Summary of the Second Annual Report 2000
Welsh: Cyfle i Bawb: Flwyddyn yn Ddiweddarach: Gwneud Gwahaniaeth: Crynodeb o'r Ail Adroddiad Blynyddol 2000
Status C
Subject: Social services
Part of speech: Noun, Masculine, Singular
Definition: DSS document
Last Updated: 7 October 2004
English: Opportunity Housing Trust
Welsh: Ymddiriedolaeth Tai Cyfle
Status A
Subject: Housing
Part of speech: Noun, Feminine, Singular
Last Updated: 28 April 2005
English: Opportunity Wales
Welsh: Cyfle Cymru
Status A
Subject: Committees
Part of speech: Noun, Masculine, Singular
Definition: OW. www.ecommerce.ac.uk
Last Updated: 4 July 2002
English: Opportunity Wales Advance
Welsh: Cyfle Cymru Cam Ymlaen
Status C
Subject: Economic development
Part of speech: Noun, Masculine, Singular
Last Updated: 20 September 2005
English: opposite gender
Welsh: rhywedd arall
Status B
Subject: General
Part of speech: Noun, Masculine, Singular
Context: Enabling access to single sex provision in education settings refers only to trans learners who have made changes in school to live in the opposite gender, for example changing their pronouns.
Last Updated: 1 May 2024
English: opposite-sex pupil
Welsh: disgybl o'r rhyw arall
Status B
Subject: General
Part of speech: Noun, Masculine, Singular
Plural: disgyblion o'r rhyw arall
Context: However, other forms of sex discrimination by the school against its opposite-sex pupils would still be unlawful.
Last Updated: 1 May 2024
English: Oppositional Defiant Disorder
Welsh: Anhwylder Herio Gwrthryfelgar
Status C
Subject: Health
Part of speech: Noun, Masculine, Singular
Last Updated: 29 October 2014
English: opposition party
Welsh: gwrthblaid
Status A
Subject: Politics
Part of speech: Noun, Feminine, Singular
Context: Lluosog: gwrthbleidiau.
Last Updated: 2 February 2006
English: OPRA
Welsh: Dull o Weithredu Hawliau Pobl Hŷn
Status B
Subject: Health
Part of speech: Noun, Masculine, Singular
Notes: Dyma'r acronym a ddefnyddir yn Saesneg am Older People's Rights Approach.
Last Updated: 10 December 2020
English: OPS
Welsh: Swyddfa'r Ysgrifennydd Parhaol
Status A
Subject: Welsh Government posts and departments
Part of speech: Noun, Feminine, Singular
Definition: Office of the Permanent Secretary
Last Updated: 11 June 2007
English: OPSI
Welsh: Swyddfa Gwybodaeth y Sector Cyhoeddus
Status A
Subject: Politics
Part of speech: Proper noun, Feminine, Singular
Definition: Office of Public Sector Information
Context: Now part of the National Archives.
Last Updated: 24 May 2005
English: OPSIR
Welsh: Adroddiad Sefydliad ar Ddigwyddiadau sy’n Ymwneud â Diogelwch Cleifion
Status B
Subject: Health
Part of speech: Noun, Masculine, Singular
Plural: Adroddiadau Sefydliadau ar Ddigwyddiadau sy’n Ymwneud â Diogelwch Cleifion
Notes: Dyma'r acronym a ddefnyddir yn Saesneg am Organisation Patient Safety Incident Report
Last Updated: 31 October 2019
English: Opthalmic Specialist Advisory Group
Welsh: Grŵp Cynghori Arbenigwyr Offthalmig
Status A
Subject: Health
Part of speech: Proper noun, Masculine, Singular
Definition: OSAG
Last Updated: 30 October 2012
English: OPTIC
Welsh: OPTIC
Status A
Subject: Economic development
Part of speech: Neutral
Definition: Opto-electronics Technology and Incubation Centre, St Asaph
Last Updated: 19 December 2006
English: optical appliance
Welsh: teclyn optegol
Status A
Subject: Health
Part of speech: Noun, Masculine, Singular
Plural: teclynnau optegol
Definition: Darn o offer a gynlluniwyd i unioni neu wella abnormaledd plygiant yn y llygaid, neu ryw gyfeiliornad optegol ar y golwg.
Last Updated: 25 November 2022
English: Optical Coherence Tomography
Welsh: Tomograffeg Cydlyniant Optegol
Status B
Subject: Health
Part of speech: Noun, Masculine, Singular
Notes: Yng nghyd-destun optometreg. Defnyddir yr acronym OCT yn Saesneg.
Last Updated: 25 February 2021
English: optical manufacturing technician
Welsh: technegydd gweithgynhyrchu optegol
Status C
Subject: Personnel
Part of speech: Noun, Masculine, Singular
Last Updated: 11 September 2007
English: optical mark reader
Welsh: darllenydd marciau optegol
Status B
Subject: Education
Part of speech: Noun, Masculine, Singular
Definition: A machine which rapidly processes paper forms by scanning the page for marks such as crosses or ticks.
Last Updated: 23 July 2003
English: optical polymers
Welsh: polymerau optig
Status C
Subject: Economic development
Part of speech: Noun, Plural
Last Updated: 19 December 2006
English: optical practice
Welsh: practis optegol
Status B
Subject: Health
Part of speech: Noun, Masculine, Singular
Plural: practisau optegol
Last Updated: 4 June 2020
English: optic atrophy
Welsh: atroffi optig
Status B
Subject: Health
Part of speech: Noun, Masculine, Singular
Definition: Cyflwr lle bydd y nerf optig yn dirywio'n barhaol, gan golli'r ffibrau nerfol cysylltiedig.
Last Updated: 25 March 2024