TermCymru

Results are displayed in Welsh alphabetical order A-Y
Welsh: Awdurdod y Marchnadoedd Nwy a Thrydan
English: Gas and Electricity Markets Authority
Status B
Subject: General
Part of speech: Noun, Masculine, Singular
Last updated: 3 July 2025
Welsh: boeler cyddwyso nwy
English: gas condensing boiler
Status C
Subject: Environment
Part of speech: Noun, Masculine, Singular
Last updated: 20 April 2012
Welsh: cartrefi nad ydynt ar y grid nwy
English: off gas-grid homes
Status C
Subject: Environment
Part of speech: Noun, Plural
Last updated: 25 March 2010
Welsh: cerbydau nwy naturiol
English: natural gas vehicles
Status C
Subject: Environment
Part of speech: Noun, Plural
Definition: NGV
Last updated: 3 December 2003
Welsh: chwilio am olew a nwy alltraeth ac elwa arnynt
English: offshore oil and gas exploration and exploitation
Status C
Subject: Law
Part of speech: Verb
Last updated: 7 June 2011
Welsh: Cofrestr Diogelwch Nwy
English: Gas Safe Register
Status C
Subject: Environment
Part of speech: Noun, Feminine, Singular
Context: Hwn yn disodli'r Gofrestr Nwy CORGI.
Last updated: 6 April 2011
Welsh: Corff Hyfforddi Cenedlaethol y Diwydiannau Nwy a Dŵr
English: Gas and Water Industry National Training Organisation
Status C
Subject: Environment
Part of speech: Noun, Masculine, Singular
Definition: GWINTO
Last updated: 10 January 2003
Welsh: Corff Hyfforddi Cenedlaethol y Diwydiannau Nwy a Dŵr
English: GWINTO
Status C
Subject: Environment
Part of speech: Noun, Masculine, Singular
Definition: Gas and Water Industry National Training Organisation
Last updated: 21 July 2011
Welsh: cyflenwr nwy
English: gas supplier
Status C
Subject: Planning
Part of speech: Noun, Masculine, Singular
Plural: cyflenwyr nwy
Last updated: 30 June 2022
Welsh: cyflenwr nwy cyhoeddus
English: public gas supplier
Status C
Subject: Environment
Part of speech: Noun, Masculine, Singular
Last updated: 23 July 2003
Welsh: cyfleuster derbyn nwy
English: gas reception facility
Status A
Subject: Planning
Part of speech: Noun, Masculine, Singular
Plural: cyfleusterau derbyn nwy
Definition: Cyfleuster ar gyfer derbyn nwy naturiol yn ei ffurf nwy, ac ar gyfer ymdrin ag ef (heblaw ei storio).
Last updated: 23 March 2023
Welsh: cymysgedd nwy carbon deuocsid mewn dau gam
English: biphasic carbon dioxide gas mixture
Status C
Subject: Environment
Part of speech: Noun, Masculine, Singular
Last updated: 6 September 2011
Welsh: cysylltiadau nwy gweithredol
English: active gas connections
Status C
Subject: Health
Part of speech: Noun, Plural
Context: Parhau i fapio cysylltiadau nwy gweithredol yng Nghymru ac annog cwmnïau ynni i ymestyn y grid nwy lle y bo’n ymarferol, yn enwedig mewn ardaloedd â llawer iawn o dlodi tanwydd.
Last updated: 5 September 2019
Welsh: diwydiant nwy
English: gas industry
Status C
Subject: Economic development
Part of speech: Noun, Masculine, Singular
Last updated: 11 September 2007
Welsh: echdynnu olew a nwy
English: oil and gas extraction
Status C
Subject: Environment
Part of speech: Verb
Last updated: 12 September 2007
Welsh: ffrwd cymysgu olew nwy
English: gas oil blending stream
Status C
Subject: Environment
Part of speech: Noun, Feminine, Singular
Last updated: 1 September 2010
Welsh: Gorchymyn Trydan a Nwy (Rhwymedigaeth Cwmnïau Ynni) 2022
English: The Electricity and Gas (Energy Company Obligation) Order 2022
Status B
Subject: Titles of legislation
Part of speech: Noun, Masculine, Singular
Notes: Teitl cwrteisi ar enw darn o ddeddfwriaeth sydd ar gael yn Saesneg yn unig.
Last updated: 26 September 2024
Welsh: grid nwy
English: gas network
Status C
Subject: Health
Part of speech: Noun, Masculine, Singular
Context: Parhau i fapio cysylltiadau nwy gweithredol yng Nghymru ac annog cwmnïau ynni i ymestyn y grid nwy lle y bo’n ymarferol, yn enwedig mewn ardaloedd â llawer iawn o dlodi tanwydd.
Last updated: 5 September 2019
Welsh: Gwasanaeth Argyfwng Nwy Cenedlaethol
English: National Gas Emergency Service
Status C
Subject: Environment
Part of speech: Noun, Masculine, Singular
Last updated: 6 April 2011
Welsh: Gweithfeydd Compostio a Bio-nwy
English: Composting and Biogas Plants
Status C
Subject: Environment
Part of speech: Noun, Plural
Last updated: 29 April 2003
Welsh: gweithrediadau olew a nwy ar y môr
English: offshore oil and gas operations
Status C
Subject: Environment
Part of speech: Noun, Plural
Last updated: 23 July 2003
Welsh: gweithrediadau olew a nwy ar y tir
English: onshore oil and gas operations
Status C
Subject: Environment
Part of speech: Noun, Plural
Last updated: 23 July 2003
Welsh: gwenwyno â nwy
English: gassing
Status C
Subject: Agriculture
Part of speech: Verb
Last updated: 15 February 2010
Welsh: gwresogi ag olew neu nwy
English: oil and gas heating
Status C
Subject: Environment
Part of speech: Verb
Last updated: 8 July 2008
Welsh: nwy anadweithiol
English: inert gas
Status A
Subject: Agriculture
Part of speech: Noun, Masculine, Singular
Last updated: 5 February 2013
Welsh: nwy anghonfensiynol
English: unconventional gas resource
Status C
Subject: Environment
Part of speech: Noun, Masculine, Singular
Context: Bydd nwy’n parhau i chwarae rôl wrth newid i system ynni carbon isel, ac o ystyried heriau sicrwydd ynni, mae angen gwerthuso potensial nwy anghonfensiynol yng Nghymru a’r cyfleoedd economaidd a allai ddeillio o unrhyw ddatblygiad.
Last updated: 5 September 2019
Welsh: nwy clustogi
English: cushion gas
Status A
Subject: Planning
Part of speech: Noun, Masculine, Singular
Definition: Nwy a gedwir mewn cyfleusterau tanddaearol at y diben o alluogi adfer o’r storfa nwy arall a storiwyd ynddi.
Last updated: 23 March 2023
Welsh: nwy naturiol
English: natural gas
Status A
Subject: Environment
Part of speech: Noun, Masculine, Singular
Definition: Unrhyw nwy sy'n deillio o strata naturiol.
Last updated: 23 March 2023
Welsh: Nwy Naturiol Hylifedig
English: Liquefied Natural Gas
Status C
Subject: Environment
Part of speech: Noun, Masculine, Singular
Definition: LNG
Last updated: 24 May 2005
Welsh: nwy naturiol hylifedig
English: liquified natural gas
Status A
Subject: Environment
Part of speech: Noun, Masculine, Singular
Definition: Nwy naturiol sydd wedi cael ei oeri nes ei fod wedi troi'n hylif.
Notes: Mae'r termau liquid natural gas/nwy naturiol hylifol yn gyfystyr, a defnyddir yr acronym LNG ar gyfer y ddau derm, yn y ddwy iaith.
Last updated: 23 March 2023
Welsh: nwy naturiol hylifol
English: liquid natural gas
Status A
Subject: Environment
Part of speech: Noun, Masculine, Singular
Definition: Nwy naturiol sydd wedi cael ei oeri nes ei fod wedi troi'n hylif.
Notes: Mae'r termau liquified natural gas/nwy naturiol hylifedig yn gyfystyr, a defnyddir yr acronym LNG ar gyfer y ddau derm, yn y ddwy iaith.
Last updated: 23 March 2023
Welsh: nwy o’r prif gyflenwad
English: mains gas
Status B
Subject: Housing
Part of speech: Noun, Masculine, Singular
Last updated: 1 August 2018
Welsh: nwy petrolewm hylifedig
English: liquefied petroleum gas
Status C
Subject: Environment
Part of speech: Noun, Masculine, Singular
Last updated: 10 January 2007
Welsh: nwy potel diwydiannol
English: bottled industrial gas
Status C
Subject: Economic development
Part of speech: Noun, Masculine, Singular
Last updated: 25 July 2005
Welsh: nwy siâl
English: shale gas
Status A
Subject: Environment
Part of speech: Noun, Masculine, Singular
Last updated: 6 January 2014
Welsh: nwy tŷ gwydr
English: greenhouse gas
Status A
Subject: Environment
Part of speech: Noun, Masculine, Singular
Plural: nwyon tŷ gwydr
Context: Mae cyflenwi ynni, busnes a phrosesau diwydiannol yn parhau i fod yn brif sbardun allyriadau nwyon tŷ gwydr.
Last updated: 25 July 2019
Welsh: nwy tirlenwi
English: landfill gas
Status B
Subject: Environment
Part of speech: Noun, Masculine, Singular
Definition: Dull o gynhyrchu ynni adnewyddol.
Context: Ceir 28 o gynhyrchwyr carthion a nwy tirlenwi ar draws y wlad, gyda’r rhan fwyaf yn safleoedd tirlenwi (23 safle). Gyda’i gilydd, mae gan y technolegau hyn gyfanswm capasiti thermol a thrydanol cyfun o bron i 50 MW. Mae’r swm a gynhyrchir o nwy tirlenwi wedi bod yn gostwng yn raddol o’i uchafbwynt yn 2014, oherwydd bod llai o nwy methan yn cael ei ddal o wastraff sy’n dadelfennu.
Last updated: 16 September 2024
Welsh: nwy wedi ei fflworineiddio
English: fluorinated gas
Status B
Subject: Environment
Part of speech: Noun, Masculine, Singular
Plural: nwyon wedi eu fflworineiddio
Last updated: 16 November 2023
Welsh: nwy wedi ei fflworineiddio
English: F-gas
Status B
Subject: Environment
Part of speech: Noun, Masculine, Singular
Plural: nwyon wedi eu fflworineiddio
Definition: Nwy tŷ gwydr a wnaed gan ddyn, sy'n cynnwys fflworin.
Last updated: 16 November 2023
Welsh: olew nwy
English: gas oil
Status C
Subject: Environment
Part of speech: Noun, Masculine, Singular
Definition: Olew sy’n cael ei ffurfio trwy ddistyllu petrolewm trwy dwymo’r olew, ei droi’n nwy ac yna ei gyddwyso.
Last updated: 1 September 2010
Welsh: Plymio a Gwresogi Domestig (Cyfarpar Aer Cynnes sy'n Rhedeg ar Nwy)
English: Domestic Plumbing & Heating (Gas Fired Warm Air Appliances)
Status A
Subject: Education
Part of speech: Proper noun
Context: Apprenticeship framework.
Last updated: 23 July 2013
Welsh: Plymio a Gwresogi Domestig (Cyfarpar Gwresogi Dŵr a Gwres Canolog sy'n Rhedeg ar Nwy)
English: Domestic Plumbing & Heating (Gas Fired Water and Central Heating Appliances)
Status A
Subject: Education
Part of speech: Proper noun
Context: Apprenticeship framework.
Last updated: 5 August 2013
Welsh: Prosiect Tyrbinau Nwy Cylch Cyfun Pŵer Hafren
English: Severn Power CCGT Project
Status C
Subject: Environment
Part of speech: Noun, Masculine, Singular
Definition: CCGT = Combined Cycle Gas Turbines
Last updated: 20 October 2008
Welsh: Rheoliadau Diogelwch Nwy (Gosod a Defnyddio) 1998
English: Gas Safety (Installation and Use) Regulations 1998
Status B
Subject: Titles of legislation
Part of speech: Noun, Plural
Notes: Teitl cwrteisi ar ddarn o ddeddfwriaeth sydd ar gael yn Saesneg yn unig.
Last updated: 2 December 2021
Welsh: Rheoliadau Gwaith Piblinellau Trawsgludo Nwy Cyhoeddus (Asesu Effeithiau Amgylcheddol) 1999
English: Public Gas Transporter Pipe-line Works (Environmental Impact Assessment) Regulations 1999
Status A
Subject: Titles of legislation
Part of speech: Noun, Plural
Last updated: 12 September 2012
Welsh: rhwydwaith trosglwyddo nwy pwysedd uchel
English: high-pressure gas transmission network
Status C
Subject: Economic development
Part of speech: Noun, Masculine, Singular
Last updated: 18 August 2014
Welsh: stynio â nwy
English: gas stunning
Status A
Subject: Agriculture
Part of speech: Verb
Last updated: 5 February 2013
Welsh: trawsgludydd nwy
English: gas transporter
Status A
Subject: Planning
Part of speech: Noun, Masculine, Singular
Plural: trawsgludwyr nwy
Last updated: 23 March 2023
Welsh: Tyrbinau Nwy Cylch Cyfun
English: CCGT
Status C
Subject: Environment
Part of speech: Noun, Plural
Definition: Combined Cycle Gas Turbines
Last updated: 19 December 2006
Welsh: Tyrbinau Nwy Cylch Cyfun
English: Combined Cycle Gas Turbines
Status C
Subject: Environment
Part of speech: Noun, Plural
Definition: CCGT
Last updated: 19 December 2006