TermCymru

Results are displayed in alphabetical order.
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
English: optician
Welsh: optegydd
Status A
Subject: Health
Part of speech: Noun, Masculine, Singular
Plural: optegwyr
Definition: Term cyffredinol a ddefnyddir i gyfeirio at weithwyr proffesiynol yn y maes optegol, boed yn optegwyr cyflenwi, optometryddion neu offthalmolegwyr.
Last Updated: 25 November 2022
English: optimal hospital flow framework
Welsh: fframwaith optimeiddio llif cleifion mewn ysbytai
Status B
Subject: Health
Part of speech: Noun, Masculine, Singular
Last Updated: 2 March 2023
English: Optimised Retrofit Programme
Welsh: Y Rhaglen Ôl-osod er mwyn Optimeiddio
Status B
Subject: Environment
Part of speech: Noun, Feminine, Singular
Last Updated: 5 August 2020
English: Optimising Service Delivery Sub-group
Welsh: Is-grŵp Cyflawni Gwasanaethau
Status C
Subject: Environment
Part of speech: Noun, Masculine, Singular
Last Updated: 28 April 2004
English: optimism bias
Welsh: tuedd optimistiaeth
Status B
Subject: Finance and statistics
Part of speech: Noun, Feminine, Singular
Definition: Y duedd i'r sawl sy'n arfarnu prosiect fod yn rhy optimistaidd am agweddau ar y prosiect hwnnw, ee costau cyfalaf a chostau gweithredu, hyd y prosiect a'i fanteision.
Last Updated: 5 September 2019
English: optimum business strategy
Welsh: y strategaeth fusnes orau bosibl
Status C
Subject: Agriculture
Part of speech: Noun, Feminine, Singular
Last Updated: 7 September 2005
English: optimum yield
Welsh: cyweiniad optimwm
Status A
Subject: Environment
Part of speech: Noun, Masculine, Singular
Definition: OY
Context: of fish
Last Updated: 2 April 2013
English: opt-in system
Welsh: system optio i mewn
Status B
Subject: Health
Part of speech: Noun, Feminine, Singular
Last Updated: 18 May 2012
English: option
Welsh: dewis
Status B
Subject: ICT
Part of speech: Noun, Masculine, Singular
Last Updated: 19 July 2005
English: optional
Welsh: dewisol
Status C
Subject: Agriculture
Part of speech: Adjective
Last Updated: 29 July 2003
English: Optional Action
Welsh: Gweithred Opsiynol
Status B
Subject: Agriculture
Part of speech: Noun, Feminine, Singular
Plural: Gweithredoedd Opsiynol
Context: * The Stability Payment will help you to make the transition from one system of support to another and provide additional fnancial support in advance of the Optional and Collaborative Actions of the SFS becoming available. [1]
Notes: Elfen yn y Cynllun Ffermio Cynaliadwy.
Last Updated: 27 February 2024
English: Optional Assessment Materials
Welsh: Deunyddiau Asesu Dewisol
Status C
Subject: Education
Part of speech: Noun, Plural
Definition: OAM
Last Updated: 25 July 2005
English: Optional Assessment Materials in English, Welsh, and Welsh Second Language at KS2 and 3
Welsh: Deunyddiau Asesu Dewisol ar gyfer Saesneg, Cymraeg a Chymraeg Ail Iaith, CA 2 a 3
Status C
Subject: Education
Part of speech: Noun, Plural
Definition: cyhoeddiad ACCAC
Last Updated: 7 October 2002
English: Optional layer
Welsh: haen Opsiynol
Status B
Subject: Agriculture
Part of speech: Noun, Feminine, Singular
Notes: Yng nghyd-destun y Cynllun Ffermio Cynaliadwy.
Last Updated: 22 September 2022
English: optional statement
Welsh: datganiad dewisol
Status A
Subject: Education
Part of speech: Noun, Masculine, Singular
Last Updated: 15 January 2008
English: Optional Supporting Capital Works
Welsh: Gwaith Cyfalaf Ategol Opsiynol
Status A
Subject: Agriculture
Part of speech: Noun, Masculine, Singular
Notes: Math o brosiect o dan gynllun grantiau bach Glastir.
Last Updated: 6 December 2016
English: optioneering
Welsh: gwaith ar opsiynau
Status C
Subject: General
Part of speech: Noun, Masculine, Singular
Last Updated: 17 March 2022
English: Option Limit
Welsh: Terfyn yr Opsiwn
Status C
Subject: Agriculture
Part of speech: Noun, Masculine, Singular
Context: Glastir
Last Updated: 25 November 2014
English: option menu
Welsh: dewislen
Status C
Subject: Education
Part of speech: Noun, Feminine, Singular
Plural: dewislenni
Definition: 14-19 Learning Pathways
Last Updated: 21 May 2025
English: option of study
Welsh: opsiwn astudio
Status C
Subject: Education
Part of speech: Noun, Masculine, Singular
Last Updated: 2 August 2010
English: Option Points Limit
Welsh: Terfyn Pwyntiau'r Opsiwn
Status C
Subject: Agriculture
Part of speech: Noun, Masculine, Singular
Context: Glastir
Last Updated: 25 November 2014
English: Option Report
Welsh: Adroddiad ar Opsiynau
Status B
Subject: Transport
Part of speech: Noun, Masculine, Singular
Definition: A stage in the project management system used by Network Rail.
Last Updated: 23 January 2012
English: Options, Costs and Benefits
Welsh: Opsiynau, Costau a Manteision
Status B
Subject: Housing
Part of speech: Noun, Plural
Notes: Pennawd safonol yn nogfennau Asesiadau Effaith Rheoleiddio.
Last Updated: 10 May 2016
English: Option Selection Report
Welsh: Adroddiad ar Ddewis Opsiwn
Status B
Subject: Transport
Part of speech: Noun, Masculine, Singular
Definition: A stage in the project management system used by Network Rail.
Last Updated: 23 January 2012
English: options for political structures
Welsh: opsiynau ar gyfer strwythurau gwleidyddol
Status C
Subject: Local government
Part of speech: Noun, Plural
Last Updated: 2 November 2010
English: Options Map
Welsh: Map Opsiynau
Status C
Subject: Agriculture
Part of speech: Noun, Masculine, Singular
Plural: Mapiau Opsiynau
Context: Mae’r Map Opsiynau hwn yn dangos eich holl Opsiynau Rheoli Glastir.
Notes: Term sy’n berthnasol i gynllun Glastir.
Last Updated: 8 February 2016
English: Options Menu Development Project Leader
Welsh: Arweinydd y Prosiect Datblygu Dewislenni
Status C
Subject: Welsh Government posts and departments
Part of speech: Noun, Masculine, Singular
Last Updated: 14 November 2007
English: options of study
Welsh: opsiynau astudio
Status C
Subject: Education
Part of speech: Noun, Plural
Last Updated: 2 August 2010
English: option value
Welsh: gwerth opsiwn
Status C
Subject: Finance and statistics
Part of speech: Noun, Masculine, Singular
Definition: In cost–benefit analysis and social welfare economics, the term option value refers to the value that is placed on private willingness to pay for maintaining or preserving a public asset or service even if there is little or no likelihood of the individual actually ever using it. The concept is most commonly used in public policy assessment to justify continuing investment in parks, wildlife refuges and land conservation, as well as rail transportation facilities and services.
Last Updated: 10 January 2017
English: optochiral switch
Welsh: swits optocirol
Status B
Subject: Environment
Part of speech: Noun, Masculine, Singular
Plural: switsys optocirol
Last Updated: 19 January 2023
English: optoelectronics
Welsh: optoelectroneg
Status C
Subject: Economic development
Part of speech: Noun, Feminine, Singular
Last Updated: 2 February 2006
English: Optoelectronics Technology and Incubation Centre
Welsh: Canolfan Dechnoleg a Deori Optoelectroneg
Status C
Subject: Economic development
Part of speech: Noun, Feminine, Singular
Definition: OpTIC St Asaph
Last Updated: 5 December 2006
English: optometric
Welsh: optometrig
Status C
Subject: Health
Part of speech: Adjective
Last Updated: 28 April 2008
English: Optometric Adviser
Welsh: Cynghorydd Optometrig
Status C
Subject: Health
Part of speech: Noun, Masculine, Singular
Last Updated: 11 October 2004