TermCymru

Results are displayed in English alphabetical order A-Z

Welsh: cynllun oddi ar y safle ar gyfer argyfyngau

Status B

Subject: Planning

Part of speech: Noun, Masculine, Singular

Plural: cynlluniau oddi ar y safle ar gyfer argyfyngau

Definition: Cynllun ar gyfer ymdrin â mesurau i atal a rheoli argyfyngau sy'n effeithio ar y cyhoedd a'r amgylchedd y tu allan i safle penodol, ee gorsaf ynni.

Last Updated: 23 March 2021

English: off-slip road

Welsh: ffordd ymadael

Status A

Subject: Transport

Part of speech: Noun, Feminine, Singular

Plural: ffyrdd ymadael

Definition: ffordd (unffordd, fel arfer) fer sy'n galluogi traffig i ymadael â phriffordd

Context: Y darn hwnnw o brif gerbytffordd tua'r gorllewin y draffordd o'r man lle y mae'r ffordd ymadael tua'r gorllewin wrth Gyffordd 23 yn gwyro o brif gerbytffordd tua'r gorllewin y draffordd i'r man lle y mae'r ffordd ymuno tua'r gorllewin wrth Gyffordd 24 Coldra yn uno â phrif gerbytffordd tua'r gorllewin y draffordd

Last Updated: 16 November 2021

English: off-street parking

Welsh: parcio oddi ar y stryd

Status B

Subject: Transport

Part of speech: Noun, Masculine, Singular

Context: Where users can charge cars and vans at home (with access to off-street parking), this offers the most convenient and costeffective charging solution.

Last Updated: 19 December 2024

English: off-take

Welsh: allbwynt

Status B

Subject: Planning

Part of speech: Noun, Masculine, Singular

Plural: allbwyntiau

Definition: Strwythur ar gyfer tynnu cynhwysyn (ee olew, dŵr, hydrogen) o storfa neu bibell.

Notes: Weithiau gwelir y ffurf Saesneg heb gysylltnod.

Last Updated: 27 March 2025

English: off-take

Welsh: dargymryd

Status B

Subject: Economic development

Part of speech: Verb

Definition: Yng nghyd-destun y diwydiant ynni hydrogen, proses lle bydd cwmni sy’n defnyddio hydrogen yn ymrwymo i gontract hirdymor i brynu hydrogen gan gyflenwr. Mae hyn yn darparu’r buddsoddiad sydd ei angen ar y cyflenwr i ddatblygu’r seilwaith i gynhyrchu a chyflenwi’r hydrogen hwnnw.

Notes: Mewn cyd-destunau llai technegol, mae’n bosibl y gellid defnyddio aralleiriad fel “prynu hydrogen”.

Last Updated: 15 January 2026

English: off-take infrastructure

Welsh: seilwaith dargymryd

Status B

Subject: Economic development

Part of speech: Noun, Masculine, Singular

Definition: Yng nghyd-destun y diwydiant ynni hydrogen, y seilwaith sy’n galluogi cynhyrchu, cyflenwi neu ddefnyddio hydrogen gan y sectorau a’r cwmnïau sy’n ymrwymo i’w brynu.

Notes: Mewn cyd-destunau llai technegol, mae’n bosibl y gellid defnyddio aralleiriad fel “seilwaith cynhyrchu hydrogen” neu “seilwaith cyflenwi hydrogen” gan ddibynnu ar y cyd-destun.

Last Updated: 15 January 2026

English: off-taker

Welsh: cwmni dargymryd

Status B

Subject: Economic development

Part of speech: Noun, Masculine, Singular

Plural: cwmnïau dargymryd

Definition: Yng nghyd-destun y diwydiant ynni hydrogen, cwmni sy’n defnyddio hydrogen sydd hefyd yn ymrwymo i gontract hirdymor i brynu hydrogen gan gyflenwr.

Context: Mae cwmnïau dargymryd yn allweddol i sicrhau hyfywedd buddsoddi mewn cyfleusterau cynhyrchu hydrogen.

Notes: Mewn cyd-destunau llai technegol, mae’n bosibl y gellid defnyddio aralleiriad fel “prynwr hydrogen”.

Last Updated: 15 January 2026

English: off-take sector

Welsh: y sector dargymryd

Status B

Subject: Economic development

Part of speech: Noun, Masculine, Singular

Definition: Yng nghyd-destun y diwydiant ynni hydrogen, sector sy’n cynnwys cwmnïau sydd yn ymrwymo i gontract hirdymor i brynu hydrogen gan gyflenwr.

Context: Mae’r sector dargymryd hydrogen yn chwarae rôl hanfodol wrth sbarduno galw ar gyfer buddsoddi mewn seilwaith hydrogen.

Notes: Mewn cyd-destunau llai technegol, mae’n bosibl y gellid defnyddio aralleiriad fel “sector prynu hydrogen”.

Last Updated: 15 January 2026

English: off-the-job training

Welsh: hyfforddiant i ffwrdd o'r gwaith

Status C

Subject: Education

Part of speech: Noun, Masculine, Singular

Last Updated: 30 July 2007

English: off the shelf components

Welsh: cydrannau parod

Status B

Subject: Economic development

Part of speech: Noun, Feminine, Plural

Last Updated: 3 April 2012

English: off-trade

Welsh: allfasnach

Status A

Subject: Health

Part of speech: Noun, Feminine, Singular

Last Updated: 26 November 2012

English: off-white

Welsh: llwydwyn

Status C

Subject: ICT

Part of speech: Adjective

Definition: Not quite white, rather yellowish or greyish white. Chambers Dictionary.

Last Updated: 26 January 2010

English: Ofgem

Welsh: Ofgem

Status C

Subject: Environment

Last Updated: 10 January 2003

English: of local providence

Welsh: cynefin

Status C

Subject: Law

Part of speech: Adjective

Last Updated: 17 January 2005

English: OFM

Welsh: Swyddfa'r Prif Weinidog

Status A

Subject: Welsh Government posts and departments

Part of speech: Noun, Feminine, Singular

Definition: Office of the First Minister

Context: Gofal: Mae 'Office of the First Minister' i'w gael yn yr Alban ac Iwerddon hefyd.

Notes: Rhan o Adran y Prif Weinidog a Swyddfa’r Cabinet yn Llywodraeth Cymru. Ychwanegwyd y cofnod hwn Rhagfyr 2015.

Last Updated: 23 December 2015

English: OFMCO

Welsh: OFMCO

Status A

Subject: Welsh Government posts and departments

Part of speech: Noun, Feminine, Singular

Notes: Dyma’r acronym a ddefnyddir yn y ddwy iaith am yr Office of the First Minister and Cabinet Office / Swyddfa’r Prif Weinidog a Swyddfa’r Cabinet – rhan o Lywodraeth Cymru.

Last Updated: 4 November 2016

English: Ofqual

Welsh: Swyddfa Rheoleiddio Cymwysterau ac Arholiadau

Status C

Subject: Education

Part of speech: Noun, Feminine, Singular

Context: Office of Qualifications and Examinations Regulation

Last Updated: 2 December 2010

English: OFS

Welsh: Cynllun Ffermio Organig

Status C

Subject: Environment

Part of speech: Noun, Masculine, Singular

Context: Organic Farming Scheme

Last Updated: 8 September 2009

English: of some Welsh interest

Welsh: o rywfaint o ddiddordeb i Gymru

Status B

Subject: Law

Part of speech: Adjective, Masculine, Singular

Definition: As defined in the Gifts to the Nation Scheme.

Last Updated: 23 April 2012

English: Ofsted

Welsh: Swyddfa Safonau mewn Addysg

Status C

Subject: Education

Part of speech: Noun, Feminine, Singular

Definition: Office for Standards in Education, Children's Services and Skills

Context: In England.

Last Updated: 3 September 2008

English: OFS Transitional

Welsh: Cynllun Pontio'r OFS

Status C

Subject: Agriculture

Part of speech: Noun, Masculine, Singular

Last Updated: 11 June 2014

English: OFT

Welsh: OFT

Status A

Subject: Economic development

Part of speech: Proper noun, Feminine, Singular

Definition: Office of Fair Trading

Context: Replaced by the Competition and Markets Authority in 2014.

Last Updated: 11 October 2004

English: OFTEC

Welsh: Cymdeithas Dechnegol Llosgi Olew

Status C

Subject: Environment

Part of speech: Noun, Feminine, Singular

Definition: Oil Firing Technical Association

Last Updated: 6 April 2011

English: Oftel

Welsh: Oftel

Status A

Subject: ICT

Part of speech: Neutral

Definition: Office of Telecommunications (Duties now inherited by Ofcom)

Last Updated: 2 September 2004

English: OFTW

Welsh: Statws heb TB swyddogol wedi’i ddiddymu

Status C

Subject: Agriculture

Part of speech: Noun, Masculine, Singular

Definition: Officially TB Free Withdrawn

Last Updated: 6 April 2011

English: Ofwat

Welsh: Ofwat

Status A

Subject: Environment

Part of speech: Noun, Feminine, Singular

Definition: Water Services Regulation Authority

Last Updated: 4 January 2006

English: OGC

Welsh: Swyddfa Masnach y Llywodraeth

Status A

Subject: General

Part of speech: Proper noun, Feminine, Singular

Definition: Office of Government Commerce

Context: UK Government.

Last Updated: 15 July 2005

English: ogee profile gutters

Welsh: landeri ogee

Status C

Subject: Estates and Cadw

Part of speech: Noun, Plural

Last Updated: 20 January 2006

English: OGL

Welsh: Y Drwydded Llywodraeth Agored

Status B

Subject: ICT

Part of speech: Noun, Feminine, Singular

Notes: Dyma'r acronym Saesneg a ddefnyddir am 'Open Government Licence'.

Last Updated: 8 September 2022

English: Ogmore

Welsh: Ogwr

Status A

Subject: Politics

Part of speech: Proper noun

Definition: Constituency

Last Updated: 25 June 2002

English: Ogmore Castle

Welsh: Castell Ogwr

Status A

Subject: Estates and Cadw

Part of speech: Proper noun

Notes: Dyma'r ffurfiau a ddefnyddir yn swyddogol gan Cadw yn y ddwy iaith am yr heneb dan sylw. Safonwyd gan Banel Safoni Enwau Lleoedd Comisiynydd y Gymraeg, mewn ymgynghoriad â Cadw.

Last Updated: 24 October 2024

English: Ogmore Vale

Welsh: Bro Ogwr

Status C

Subject: Place-names

Part of speech: Proper noun

Last Updated: 6 December 2005

English: Ogmore Vale

Welsh: Bro Ogwr

Status A

Subject: Place-names

Part of speech: Proper noun

Notes: Ward etholiadol ym Mwrdeistref Sirol Pen-y-bont ar Ogwr. Dyma'r enwau a ragnodwyd yn Gymraeg a Saesneg ar gyfer y ward yng Ngorchymyn Bwrdeistref Sirol Pen-y-bont ar Ogwr (Trefniadau Etholiadol) 2021.

Last Updated: 17 August 2022

English: OGP

Welsh: OGP

Status B

Subject: Politics

Part of speech: Noun, Feminine, Singular

Notes: Dyma'r acronym a ddefnyddir yn y ddwy iaith am yr Open Government Partnership / y Bartneriaeth Llywodraeth Agored

Last Updated: 11 May 2017

English: OGTT

Welsh: OGTT

Status C

Subject: Health

Part of speech: Neutral

Definition: Oral Glucose Tolerance Test

Last Updated: 23 September 2004

English: Ogwr DASH

Welsh: DASH Ogwr

Status C

Subject: Social services

Part of speech: Neutral

Definition: A drugs and alcohol self-help group offering 'treatment', ie counselling to drugs/alcohol users, families and friends. Voluntary harm reduction for those with drug and alcohol problems, families and friends.

Last Updated: 10 March 2008

English: OH

Welsh: Iechyd Galwedigaethol

Status C

Subject: Health

Part of speech: Noun, Masculine, Singular

Definition: Occupational Health

Last Updated: 30 May 2008

English: OHP

Welsh: uwchdaflunydd

Status C

Subject: ICT

Part of speech: Noun, Masculine, Singular

Definition: overhead projector

Last Updated: 15 July 2005

English: OHSL

Welsh: Llyfrgell Arbenigol Iechyd y Geg

Status C

Subject: Health

Part of speech: Noun, Feminine, Singular

Definition: Oral Health Specialist Library

Last Updated: 22 August 2013

English: OIA

Welsh: SDA

Status A

Subject: Education

Definition: Office of the Independent Adjudicator

Last Updated: 7 May 2013

English: OIG

Welsh: Grŵp Effaith Weithredol y GIG

Status C

Subject: Health

Part of speech: Noun, Masculine, Singular

Definition: NHS Operational Impact Group

Last Updated: 7 July 2010

English: oil and gas extraction

Welsh: echdynnu olew a nwy

Status C

Subject: Environment

Part of speech: Verb

Last Updated: 12 September 2007

English: oil and gas heating

Welsh: gwresogi ag olew neu nwy

Status C

Subject: Environment

Part of speech: Verb

Last Updated: 8 July 2008

English: oil extracted oilseeds

Welsh: hadau olew y tynnwyd yr olew ohonynt

Status C

Subject: Environment

Part of speech: Noun, Masculine, Singular

Last Updated: 28 March 2018

English: Oil Firing Technical Association

Welsh: Cymdeithas Dechnegol Llosgi Olew

Status C

Subject: Environment

Part of speech: Noun, Feminine, Singular

Definition: OFTEC

Last Updated: 6 April 2011

English: oil pipeline

Welsh: piblinell olew

Status C

Subject: Economic development

Part of speech: Noun, Feminine, Singular

Last Updated: 18 August 2014

English: oil plants

Welsh: planhigion olew

Status C

Subject: Plants

Part of speech: Noun, Plural

Last Updated: 5 June 2006

English: Oil Pollution Preparedness, Response and Co-operation Convention 1990

Welsh: Confensiwn Bod yn Barod am Lygredd Olew, Ymateb Iddo a Chydweithredu mewn Perthynas ag Ef 1990

Status B

Subject: Environment

Part of speech: Noun, Masculine, Singular

Definition: Yr offeryn rhyngwladol sy’n rhoi’r fframwaith ar gyfer hwyluso cydweithrediad a chymorth rhyngwladol wrth baratoi rhag digwyddiadau mawr o lygru ag olew, ac wrth ymateb iddynt.

Last Updated: 15 June 2023

English: oilseed

Welsh: had olew

Status C

Subject: Environment

Part of speech: Noun, Masculine, Singular

Last Updated: 24 February 2003

English: oilseed rape

Welsh: rêp had olew

Status B

Subject: Agriculture

Part of speech: Noun, Masculine, Singular

Last Updated: 1 October 2020

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