TermCymru

Results are displayed in Welsh alphabetical order A-Y
Welsh: ynni haul goddefol
English: passive solar gain
Status C
Subject: Environment
Part of speech: Noun, Masculine, Singular
Last updated: 20 April 2012
Welsh: Ynni Lleol
English: Local Energy
Status A
Subject: Environment
Part of speech: Proper noun
Definition: Mae gwasanaeth Ynni Lleol Llywodraeth Cymru yn cynnig cymorth ariannol a thechnegol i helpu mentrau cymdeithasol a BBaChau ledled Cymru i ddatblygu eu cynlluniau ynni adnewyddadwy eu hunain.
Last updated: 2 August 2016
Welsh: Ynni Môr Cymru
English: Marine Energy Wales
Status B
Subject: Environment
Part of speech: Proper noun
Notes: Teitl cwrteisi Cymraeg ar bartneriaeth eang sy’n gweithio i ddatblygu maes ynni’r môr yng Nghymru.
Last updated: 16 November 2016
Welsh: Ynni Môr Sir Benfro
English: Marine Energy Pembrokeshire
Status B
Subject: Environment
Part of speech: Proper noun
Definition: A partnership between academia, the public. and private sector working in collaboration to establish Pembrokeshire as a ‘centre of excellence’ for sustainable marine energy generation..
Notes: Teitl cwrteisi Cymraeg ar bartneriaeth sy’n gweithio i ddatblygu maes ynni’r môr yn Sir Benfro.
Last updated: 16 November 2016
Welsh: ynni na ellir ei adnewyddu
English: non-renewable energy
Status C
Subject: Environment
Part of speech: Noun, Masculine, Singular
Definition: 'ynni anadnewyddadwy' yn bosibl hefyd
Last updated: 10 February 2004
Welsh: ynni'r llanw
English: tidal energy
Status B
Subject: Environment
Part of speech: Noun, Masculine, Singular
Definition: Math o ynni adnewyddadwy sy'n defnyddio llanw a thrai y moroedd i gynhyrchu trydan.
Notes: Gellid hepgor yr arddodiad o'r term hwn er mwyn llyfnhau'r ymadroddi mewn brawddeg. Serch hynny mae'r fannod yn naturiol yn y cyd-destun hwn yn Gymraeg, ac mae'n osgoi amwysedd.
Last updated: 26 January 2026
Welsh: ynni'r llanw
English: tidal power
Status B
Subject: Environment
Part of speech: Noun, Masculine, Singular
Notes: Defnyddir y term Saesneg hwn yn gyfystyr â 'tidal energy'.
Last updated: 26 January 2026
Welsh: ynni’r môr
English: marine energy
Status B
Subject: Environment
Part of speech: Noun, Masculine, Singular
Definition: Yr amryw ddulliau a ddefnyddir i drosi egni symudiad dŵr môr, neu halwynedd dŵr môr, yn ynni at ddefnydd pobl.
Context: Mae Llywodraeth Cymru wedi hwyluso cysylltiadau rhwng ein clystyrau ynni’r môr.
Last updated: 12 November 2020
Welsh: ynni'r tonnau
English: wave power
Status C
Subject: Environment
Part of speech: Noun, Masculine, Singular
Last updated: 29 November 2005
Welsh: ynni solar
English: solar energy
Status B
Subject: Environment
Part of speech: Noun, Masculine, Singular
Definition: Math o ynni adnewyddadwy sy'n defnyddio ymbelydredd o'r haul i greu gwres, achosi adweithiau cemegol neu gynhyrchu trydan.
Notes: Mewn cyd-destunau llai technegol mae'n bosibl y gellid defnyddio "ynni'r haul", ond mae "ynni solar" yn cadw cysondeb â thermau eraill cysylltiedig fel "paneli solar".
Last updated: 29 January 2026
Welsh: ynni solar
English: solar power
Status B
Subject: Environment
Part of speech: Noun, Masculine, Singular
Definition: Math o ynni adnewyddadwy sy'n defnyddio ymbelydredd o'r haul i greu gwres, achosi adweithiau cemegol neu gynhyrchu trydan.
Notes: Defnyddir y term Saesneg yn gyfystyr â 'solar energy', ond yn benodol - gan amlaf - mewn perthynas â chynhyrchu trydan. Mewn cyd-destunau llai technegol mae'n bosibl y gellid defnyddio "ynni'r haul", ond mae "ynni solar" yn cadw cysondeb â thermau eraill cysylltiedig fel "paneli solar".
Last updated: 29 January 2026
Welsh: ynni thermol
English: thermal energy
Status B
Subject: Environment
Part of speech: Noun, Masculine, Singular
Last updated: 5 December 2023
Welsh: ynni wedi ei storio
English: stored energy
Status A
Subject: Planning
Part of speech: Noun, Masculine, Singular
Definition: Ynni sydd wedi ei drosi o fod yn drydan, ac a gaiff ei storio at ddiben ei aildrosi yn drydan.
Last updated: 23 February 2026
Welsh: Ynni yng Nghymru
English: Energy in Wales
Status C
Subject: Economic development
Part of speech: Noun
Definition: Papur gorolwg Adolygiad o Bolisi Ynni yng Nghymru, Pwyllgor Datblygu Economoaidd
Last updated: 24 September 2002
Welsh: Ynni yng Nghymru - Papur gorolwg
English: Energy in Wales - Overview paper
Status C
Subject: Environment
Definition: EDC 12-01(p4)
Last updated: 16 August 2002
Welsh: Yn nodi â chymeradwyaeth fod
English: Notes with approval that
Status C
Subject: Committees
Last updated: 24 September 2002
Welsh: yn nwylo gweinyddwyr
English: in administration
Status C
Subject: Law
Last updated: 26 August 2008
Welsh: yn ogystal â
English: over and above
Status B
Subject: Housing
Last updated: 13 January 2012
Welsh: yn rhagolygol
English: prospectively
Status C
Subject: Finance and statistics
Part of speech: Adverb
Last updated: 27 October 2003
Welsh: yn rhannol am fod
English: not least because
Status C
Subject: General
Part of speech: Verb
Last updated: 17 March 2004
Welsh: yn rhinwedd
English: (by) virtue of
Status C
Subject: Law
Last updated: 2 November 2010
Welsh: yn rhwymo mewn cyfraith
English: legally binding
Status C
Subject: Agriculture
Part of speech: Verb
Last updated: 6 July 2010
Welsh: yn seiliedig ar leoedd
English: place-based
Status C
Subject: Environment
Definition: A place-based approach has been recognised as a successful approach to creating physical and environmental improvements to an area.
Last updated: 25 March 2013
Welsh: yn sâl adeg eu lladd
English: sick at ante-mortem
Status C
Subject: Agriculture
Part of speech: Adjective
Context: Yng nghyd-destun cynnal profion BSE ar garcasau gwartheg.
Last updated: 22 October 2009
Welsh: ŵyn stôr
English: store lambs
Status C
Subject: Agriculture
Part of speech: Noun, Plural
Last updated: 22 January 2009
Welsh: yn strategol briodol
English: strategically appropriate
Status A
Subject: Education
Part of speech: Adverb
Last updated: 7 May 2013
Welsh: yn targedu ardaloedd penodol
English: spatially targeted
Status C
Subject: Agriculture
Part of speech: Verb
Last updated: 6 November 2009
Welsh: yn unol â
English: in conformity with
Status A
Subject: Law
Part of speech: Adjective
Last updated: 6 January 2014
Welsh: yn unol â
English: pursuant to
Status A
Subject: Law
Part of speech: Adverb
Definition: o ganlyniad i; gan gydymffurfio â,
Context: Mae’r adran hon yn ei gwneud yn drosedd i landlord osod mathau penodol o ofyniad yn gydnabyddiaeth am roi neu adnewyddu contract meddiannaeth safonol, neu am barhau â chontract sydd eisoes yn bodoli, neu yn unol ag un o delerau contract meddiannaeth safonol.
Last updated: 16 November 2021
Welsh: yn unol â/ag
English: in pursuance of
Status B
Subject: Law
Part of speech: Adjective
Last updated: 13 February 2012
Welsh: Yn unol â darpariaethau Rheol Sefydlog
English: In accordance with the provisions of Standing Order
Status C
Subject: Committees
Part of speech: Neutral
Last updated: 24 September 2002
Welsh: Yn Uwch na Geiriau
English: Louder than Words
Status A
Subject: Health
Part of speech: Adjective
Definition: Siarter a gyflwynir gan yr RNIB i fusnesau sydd wedi dangos ymrwymiad i anghenion pobl fyddar a thrwm eu clyw.
Last updated: 20 May 2005
Welsh: yn well na'r gofyn
English: exceed requirements
Status C
Subject: Finance and statistics
Part of speech: Adverb
Last updated: 10 November 2004
Welsh: yn wirioneddol a thrwy reidrwydd
English: actually and necessarily
Status C
Subject: Law
Part of speech: Adverb
Last updated: 12 September 2007
Welsh: yn ychwanegol
English: in addition
Status C
Subject: Law
Part of speech: Adverb
Last updated: 17 May 2011
Welsh: yn y cyswllt hwn
English: in this behalf
Status C
Subject: Law
Part of speech: Neutral
Last updated: 20 March 2012
Welsh: Yn y dre, heb y car!
English: In town, without my car!
Status C
Subject: Transport
Definition: European Car Free day slogan.
Last updated: 13 August 2003
Welsh: yn y fan a'r lle
English: there and then
Status A
Subject: Transport
Part of speech: Adverb
Notes: Yng nghyd-destun tacsis a cherbydau hurio preifat.
Last updated: 4 June 2018
Welsh: yn y farchnad
English: in-market
Status C
Subject: Economic development
Part of speech: Adjective
Last updated: 7 July 2010
Welsh: yn y geg
English: intraoral
Status B
Subject: Health
Part of speech: Adjective
Last updated: 2 April 2020
Welsh: Yn y gwaith neu wrth gyrraedd adre. Bwydo ar y fron sydd orau i chi a'ch babi!
English: At work or arriving home. Breastfeeding is the best for your baby and you!
Status C
Subject: Health
Last updated: 21 October 2009
Welsh: Yn y Parth
English: In the Zone
Status A
Subject: Education
Part of speech: Adjective
Definition: Prosiect gan Gyngor Chwaraeon Cymru i hybu plant i wneud ymarfer corff.
Last updated: 7 May 2009
Welsh: ynys balmantog
English: paved island
Status C
Subject: Law
Part of speech: Noun, Feminine, Singular
Last updated: 13 May 2013
Welsh: Ynys Bouvet
English: Bouvet Island
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: Ynys Bŷr
English: Caldy Island
Status A
Subject: Place-names
Part of speech: Proper noun
Definition: Sir Benfro.
Last updated: 14 August 2003
Welsh: Ynys Bŷr
English: Caldey Island
Status A
Subject: Place-names
Part of speech: Noun, Feminine, Singular
Last updated: 26 March 2020
Welsh: Ynysbridge Court, Gwaelod y Garth
English: Ynysbridge Court, Gwaelod y Garth
Status C
Subject: Place-names
Definition: Cardiff
Last updated: 14 March 2006
Welsh: Ynys Dewi
English: Ramsey Island
Status A
Subject: Place-names
Part of speech: Proper noun
Definition: Sir Benfro
Last updated: 22 January 2004
Welsh: Ynys Dinas
English: Dinas Island
Status C
Subject: Place-names
Part of speech: Proper noun
Definition: Penrhyn gerllaw Abergwaun. Nid ynys mohono. Gweler y nodyn am yr enw hwnnw.
Last updated: 17 June 2011
Welsh: ynys draffig
English: traffic island
Status C
Subject: Transport
Part of speech: Noun, Feminine, Singular
Last updated: 9 December 2004