TermCymru

Results are displayed in Welsh alphabetical order A-Y
Welsh: derbyn yn ôl
English: reinstate
Status A
Subject: Education
Part of speech: Verb
Definition: h.y. disgyblion sydd wedi’u gwahardd o’r ysgol
Last updated: 23 July 2003
Welsh: derbyn yr arch yn ffurfiol
English: formal reception of the coffin
Status A
Subject: Justice and order
Part of speech: Verb
Notes: Mewn cyd-destunau seremonïol
Last updated: 4 June 2018
Welsh: dermablaenio
English: dermaplaning
Status B
Subject: Health
Part of speech: Verb
Definition: Triniaeth sy'n codi celloedd croen marw a blew o'r wyneb drwy ddefnyddio llafn.
Last updated: 5 August 2020
Welsh: dermarolio
English: dermarolling
Status B
Subject: Health
Part of speech: Verb
Definition: Triniaeth lle bydd dyfais fach gyda nodwyddau drosti yn cael ei rolio ar draws y croen.
Last updated: 5 August 2020
Welsh: dermatitis
English: dermatitis
Status B
Subject: Health
Part of speech: Noun, Masculine, Singular
Notes: Anhwylder y gellir ei drin drwy Wasanaeth Anhwylderau Cyffredin y GIG.
Last updated: 1 December 2022
Welsh: dermatoleg
English: dermatology
Status C
Subject: Health
Part of speech: Noun, Feminine, Singular
Last updated: 17 July 2006
Welsh: dermatolegol
English: dermatological
Status C
Subject: Health
Part of speech: Adjective
Last updated: 12 August 2021
Welsh: De'r Rhyl
English: Rhyl South
Status A
Subject: Place-names
Part of speech: Proper noun
Notes: Ward etholiadol yn Sir Ddinbych. Dyma'r enwau a ragnodwyd yn Gymraeg a Saesneg ar gyfer y ward yng Ngorchymyn Sir Ddinbych (Trefniadau Etholiadol) 2021.
Last updated: 17 August 2022
Welsh: Derry/Doire
English: Derry
Status B
Subject: Place-names
Part of speech: Proper noun
Definition: yn ôl y cyd-destun (ystyriaethau gwleidyddol)
Last updated: 9 September 2003
Welsh: De'r Waun
English: Chirk South
Status A
Subject: Place-names
Part of speech: Proper noun
Notes: Ward etholiadol ym Mwrdeistref Sirol Wrecsam. Dyma'r enwau a ragnodwyd yn Gymraeg a Saesneg ar gyfer y ward yng Ngorchymyn Bwrdeistref Sirol Wrecsam (Trefniadau Etholiadol) 2021.
Last updated: 17 August 2022
Welsh: derwen anwyw Califfornia
English: coast live oak
Status C
Subject: Plants
Part of speech: Noun, Feminine, Singular
Definition: Quercus Agrifolia
Last updated: 19 May 2005
Welsh: derwen ddu Califfornia
English: Californian black oak
Status C
Subject: Environment
Part of speech: Noun, Feminine, Singular
Definition: Quercus Kellogii
Last updated: 19 May 2005
Welsh: derwen ddwysflodeuog
English: tanoak
Status A
Subject: Agriculture
Part of speech: Noun, Feminine, Singular
Definition: Lithocarpus Densiflorus
Last updated: 19 May 2005
Welsh: derwen fythwyrdd
English: holm oak
Status A
Subject: Environment
Part of speech: Noun, Feminine, Singular
Definition: Quercus ilex
Last updated: 19 May 2005
Welsh: derwen goch y de
English: American southern red oak
Status C
Subject: Environment
Part of speech: Noun, Feminine, Singular
Definition: Quercus Falcata
Last updated: 19 May 2005
Welsh: derwen goch y gogledd
English: American northern red oak
Status C
Subject: Environment
Part of speech: Noun, Feminine, Singular
Definition: Quercus Rubra
Last updated: 19 May 2005
Welsh: derwen gollddail
English: deciduous oak
Status A
Subject: Plants
Part of speech: Noun, Feminine, Singular
Definition: Term ymbarel am unrhyw rywogaeth o goed derw sy'n colli ei dail, gan gynnwys y ddwy rywogaeth fwyaf cyffredin yng Nghymru sef y dderwen mes goesynnog (pedunculate oak) a'r dderwen mes di-goes (sessile oak).
Last updated: 19 August 2025
Welsh: derwen mes coesynnog
English: pedunculate oak
Status A
Subject: Plants
Part of speech: Noun, Feminine, Singular
Definition: Quercus robur
Notes: Mae'r ffurfiau Saesneg common oak ac English oak yn gyfystyr.
Last updated: 19 August 2025
Welsh: derwen mes di-goes
English: sessile oak
Status A
Subject: Plants
Part of speech: Noun, Feminine, Singular
Definition: Quercus petraea
Last updated: 19 August 2025
Welsh: derwen Shreve
English: interior live oak
Status C
Subject: Environment
Part of speech: Noun, Feminine, Singular
Definition: Quercus Parvula
Last updated: 19 May 2005
Welsh: derwen Twrci
English: Turkey oak
Status A
Subject: Plants
Part of speech: Noun, Feminine, Singular
Definition: Quercus Cerris
Last updated: 19 May 2005
Welsh: De'r Wyddgrug
English: Mold South
Status A
Subject: Place-names
Part of speech: Proper noun
Notes: Ward etholiadol yn Sir y Fflint Dyma'r enwau a ragnodwyd yn Gymraeg a Saesneg ar gyfer y ward yng Ngorchymyn Sir y Fflint (Trefniadau Etholiadol) 2021.
Last updated: 17 August 2022
Welsh: De Saundersfoot
English: Saundersfoot South
Status A
Subject: Place-names
Part of speech: Proper noun
Notes: Ward etholiadol yn Sir Benfro. Dyma'r enwau a ragnodwyd yn Gymraeg a Saesneg ar gyfer y ward yng Ngorchymyn Sir Benfro (Trefniadau Etholiadol) 2021.
Last updated: 17 August 2022
Welsh: desg boeth
English: hot desk
Status B
Subject: ICT
Part of speech: Noun, Feminine, Singular
Last updated: 23 December 2003
Welsh: desg dalu
English: checkout
Status C
Subject: Finance and statistics
Part of speech: Noun, Feminine, Singular
Last updated: 25 March 2010
Welsh: Desg Gymorth AD (Cyfleusterau)
English: HR (Facilities) Help Desk
Status C
Subject: Welsh Government posts and departments
Part of speech: Noun, Feminine, Singular
Last updated: 3 October 2006
Welsh: Desg Gymorth Adeiladau
English: Accommodation Helpdesk
Status C
Subject: Personnel
Part of speech: Noun, Feminine, Singular
Last updated: 29 April 2003
Welsh: Desg Gymorth Ddiogel ar gyfer staff nad ydynt ar Fewnrwyd Ddiogel y Llywodraeth
English: non Government Secure Intranet Helpdesk
Status C
Subject: ICT
Part of speech: Noun, Feminine, Singular
Last updated: 21 September 2012
Welsh: Desg Gymorth i Gwsmeriaid
English: Customer Helpdesk
Status C
Subject: Personnel
Part of speech: Noun, Masculine, Singular
Last updated: 1 November 2010
Welsh: Desg Gymorth Rheoli Cyfleusterau
English: Facilities Management Helpdesk
Status C
Subject: Welsh Government posts and departments
Part of speech: Noun, Feminine, Singular
Last updated: 5 October 2006
Welsh: Desg Gymorth Systemau Gwybodaeth Ddaearyddol
English: GIS Helpdesk
Status C
Subject: Planning
Part of speech: Noun, Feminine, Singular
Last updated: 16 April 2003
Welsh: desg gymorth TG
English: IT help desk
Status C
Subject: ICT
Part of speech: Noun, Feminine, Singular
Last updated: 19 June 2006
Welsh: Desg Gymorth yr Aelodau
English: Members' Helpdesk
Status A
Subject: Politics
Part of speech: Noun, Feminine, Singular
Context: In the National Assembly for Wales.
Last updated: 15 March 2004
Welsh: desg logio
English: logging desk
Status C
Subject: ICT
Part of speech: Noun, Feminine, Singular
Last updated: 21 April 2008
Welsh: desibel
English: decibel
Status C
Subject: ICT
Part of speech: Noun, Masculine, Singular
Definition: mesur sain
Last updated: 20 October 2008
Welsh: Design Circle
English: Design Circle
Status C
Subject: Planning
Part of speech: Proper noun
Last updated: 6 April 2009
Welsh: De Sudan
English: South Sudan
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: De Swydd Efrog
English: South Yorkshire
Status A
Subject: Place-names
Part of speech: Proper noun
Notes: Enw sir yn Lloegr. Safonwyd y ffurf hon gan Banel Safoni Enwau Lleoedd Comisiynydd y Gymraeg fel rhan o restr o siroedd Lloegr. Am ragor o wybodaeth am y prosiect safoni hwn, gweler gwefan Comisiynydd y Gymraeg.
Last updated: 17 June 2025
Welsh: De Swydd Gaerloyw
English: South Gloucestershire
Status A
Subject: Place-names
Part of speech: Proper noun
Last updated: 4 April 2014
Welsh: detholaeth
English: selectorate
Status B
Subject: Politics
Part of speech: Noun, Feminine, Singular
Plural: detholaethau
Definition: Y gyfran o blaid wleidyddol sydd â'r grym i ddewis ymgeisydd.
Notes: Mae'n bosibl y gallai aralleiriad fod yn fwy addas mewn rhai cyd-destuau, ee "detholwyr yr ymgeisydd o fewn y blaid".
Last updated: 31 October 2023
Welsh: DETR
English: DETR
Status C
Subject: Politics
Part of speech: Noun, Feminine, Singular
Definition: Department for Transport, Local Government and the Regions
Context: UK Government department.
Last updated: 1 December 2003
Welsh: deu(2-ethylhecsyl)ffthalad
English: DEHP
Status C
Subject: Environment
Part of speech: Noun, Masculine, Singular
Definition: di(2-ethylhexyl)phthalate
Last updated: 1 November 2010
Welsh: deu(2-ethylhecsyl)ffthalad
English: di(2-ethylhexyl)phthalate
Status C
Subject: Environment
Part of speech: Noun, Masculine, Singular
Definition: DEHP
Last updated: 1 November 2010
Welsh: deuaidd
English: binary
Status B
Subject: ICT
Part of speech: Adjective
Last updated: 19 July 2005
Welsh: deuamoniwm ffosffad
English: diammonium phosphate
Status C
Subject: Environment
Part of speech: Noun, Masculine, Singular
Last updated: 28 March 2018
Welsh: deubegynol
English: bipolar
Status B
Subject: Economic development
Part of speech: Adjective
Context: Town planning.
Last updated: 27 February 2012
Welsh: deucloromethan
English: dichloromethane
Status C
Subject: Environment
Part of speech: Noun, Masculine, Singular
Last updated: 1 November 2010
Welsh: deucoffol
English: dicofol
Status B
Subject: Environment
Part of speech: Noun, Masculine, Singular
Notes: Dyma'r ffurf fer ar y cyfansoddyn a elwir hefyd yn 2,2,2-trichloro-1,1-bis(4-chlorophenyl)ethanol / 2,2,2-tricloro-1,1-bis(4-cloroffenyl)ethanol. Llygrydd organig parhaus. Pryfladdwr sy’n debyg iawn i DDT.
Last updated: 19 September 2024
Welsh: deucromiwm tris(cromad)
English: dichromium tris(chromate)
Status B
Subject: Environment
Part of speech: Noun, Masculine, Singular
Notes: Sylwedd a reolir drwy gyfundrefn y Rheoliadau REACH.
Last updated: 1 July 2021
Welsh: deuddiben
English: dual purpose
Status C
Subject: Agriculture
Part of speech: Adjective
Definition: Bridiau gwartheg sy'n cynhyrchu llaeth a chig.
Last updated: 30 July 2003