TermCymru

Results are displayed in Welsh alphabetical order A-Y
Welsh: dyfais allbwn
English: output device
Status B
Subject: Planning
Part of speech: Noun, Feminine, Singular
Plural: dyfeisiau allbwn
Definition: Yng nghyd-destun rheoliadau adeiladu, cydran mewn gwasanaethau sefydlog adeilad sy'n darparu gwres, aer oer neu symudiad aer (ee rheiddiadur neu ffan) mewn adeilad.
Last updated: 27 January 2026
Welsh: dyfais amlddefnydd
English: multi-functional device
Status A
Subject: ICT
Part of speech: Noun, Feminine, Singular
Definition: MFD
Context: Lluosog: dyfeisiau.
Last updated: 29 January 2013
Welsh: dyfais amlddefnydd
English: MFD
Status A
Subject: ICT
Part of speech: Noun, Feminine, Singular
Definition: multi-functional device
Context: Lluosog: dyfeisiau.
Last updated: 29 January 2013
Welsh: dyfais arbed dŵr
English: water saving device
Status C
Subject: Environment
Part of speech: Noun, Masculine, Singular
Last updated: 11 July 2007
Welsh: dyfais atal acwstig
English: acoustic deterrent device
Status A
Subject: Environment
Part of speech: Noun, Feminine, Singular
Plural: dyfeisiau atal acwstig
Definition: Technoleg sy'n defnyddio sain i gadw anifeiliaid neu bobl o fannau penodol, Er enghraift, defnyddir technoleg o'r fath i gadw dolffiniaid draw o rwydi pysgota.
Context: ffrwydradau; morgludiant; arolygon seismig; gwaith adeiladu yn y môr mawr a gweithgareddau diwydiannol yn y môr mawr, e.e. carthu, drilio a gosod pyst seiliau; gwahanol fathau o sonar; a dyfeisiau atal acwstig.
Last updated: 6 June 2019
Welsh: dyfais atal cenehedlu o dan y croen
English: subcutaneous contraceptive
Status C
Subject: Law
Part of speech: Noun, Feminine, Singular
Last updated: 5 March 2007
Welsh: dyfais atal cenhedlu yn y groth
English: intrauterine contraceptive device (IUCD)
Status C
Subject: Health
Part of speech: Noun, Feminine, Singular
Last updated: 5 July 2018
Welsh: dyfais atal pysgod yn acwstig
English: acoustic fish deterrent
Status B
Subject: Environment
Part of speech: Noun, Feminine, Singular
Last updated: 23 March 2021
Welsh: dyfais atal pysgod yn acwstig
English: AFD
Status B
Subject: Environment
Part of speech: Noun, Feminine, Singular
Plural: dyfeisiau atal pysgod yn acwstig
Notes: Dyma'r acronym Saesneg a ddefnyddir am acoustic fish deterrent.
Last updated: 23 March 2021
Welsh: Dyfais Atal Tanio oherwydd Alcohol
English: Alcohol Ignition Interlock
Status C
Subject: Transport
Part of speech: Noun, Feminine, Singular
Definition: An alcohol interlock device prevents a vehicle being driven without the driver first successfully breathalysing themselves.
Last updated: 4 October 2005
Welsh: dyfais berifferol
English: peripheral device
Status B
Subject: ICT
Part of speech: Noun, Feminine, Singular
Last updated: 19 July 2005
Welsh: dyfais bleidleisio gyffyrddol
English: tactile voting device
Status B
Subject: Politics
Part of speech: Noun, Feminine, Singular
Plural: dyfeisiau pleidleisio cyffyrddol
Definition: Templed plastig sy'n cael ei osod dros bapur pleidleisio i helpu pobl ag amhariad ar eu golwg i bleidleisio'n annibynnol ac yn gyfrinachol. Mae hyn yn galluogi'r pleidleisiwr i leoli a marcio eu dewis yn gywir heb gymorth gweledol.
Last updated: 8 May 2025
Welsh: dyfais cau drws
English: self-door closer
Status B
Subject: Housing
Part of speech: Noun, Masculine, Singular
Plural: dyfeisiau cau drws
Last updated: 10 July 2025
Welsh: dyfais cerrynt gweddillol
English: residual current device
Status C
Subject: Agriculture
Part of speech: Noun, Feminine, Singular
Last updated: 20 August 2008
Welsh: dyfais cyfnewid gwres a lleithder
English: heat moist exchanger
Status C
Subject: Health
Part of speech: Noun, Feminine, Singular
Definition: HME
Last updated: 13 December 2010
Welsh: dyfais cyfnewid gwres a lleithder
English: HME
Status C
Subject: Health
Part of speech: Noun, Feminine, Singular
Definition: heat moist exchanger
Last updated: 13 December 2010
Welsh: dyfais cyfrif echelau
English: axle counter
Status C
Subject: Transport
Part of speech: Noun, Feminine, Singular
Last updated: 5 February 2008
Welsh: dyfais cynhesu tybaco
English: heated tobacco device
Status B
Subject: Health
Part of speech: Noun, Masculine, Singular
Plural: dyfeisiau cynhesu tybaco
Notes: Dyma a ddefnyddir yn y ddeddfwriaeth am heated tobacco product / cynnyrch cynhesu tybaco.
Last updated: 14 August 2024
Welsh: dyfais dagio
English: tag applicator
Status C
Subject: Agriculture
Part of speech: Noun, Feminine, Singular
Last updated: 15 July 2014
Welsh: dyfais danc
English: tank device
Status B
Subject: Health
Part of speech: Noun, Feminine, Singular
Plural: dyfeisiau tanc
Notes: Yng nghyd-destun fepio.
Last updated: 17 October 2023
Welsh: dyfais ddiogelwch sy’n cynhyrchu niwl
English: security fog device 
Status B
Subject: Justice and order
Part of speech: Noun, Feminine, Singular
Plural: dyfeisiau diogelwch sy'n cynhyrchu niwl
Definition: System ddiogelwch sydd, o'i gynnau, yn rhyddhau tarth trwchus sy'n llenwi'r ardal a warchodir yn sydyn iawn, fel ei bod fwy neu lai yn amhosibl gweld dim byd yno.
Last updated: 14 December 2023
Welsh: dyfais drwynol
English: nasal device
Status B
Subject: Health
Part of speech: Noun, Feminine, Singular
Plural: dyfeisiau trwynol
Last updated: 6 November 2019
Welsh: dyfais drwytho
English: infusion devices
Status C
Subject: Health
Part of speech: Noun, Feminine, Singular
Plural: dyfeisiau trwytho
Context: Mae Bwrdd Iechyd Prifysgol Hywel Dda wedi gwneud cais am gyllid i'w helpu i amnewid eu stoc o ddyfeisiau trwytho sydd wedi darfod yn glinigol/yn dechnegol.
Last updated: 3 October 2018
Welsh: dyfais fewnanadlu
English: inhaling device
Status A
Subject: Health
Part of speech: Noun, Feminine, Singular
Plural: dyfeisiau mewnanadlu
Context: Term o Fil Iechyd y Cyhoedd.
Last updated: 9 December 2021
Welsh: dyfais fewnbynnu
English: input device
Status B
Subject: ICT
Part of speech: Noun, Feminine, Singular
Last updated: 19 July 2005
Welsh: dyfais fonitro CO2
English: CO2 monitor
Status B
Subject: Environment
Part of speech: Noun, Feminine, Singular
Plural: dyfeisiau monitro CO2
Definition: Teclyn sy'n mesur lefel carbon deuocsid yn yr aer.
Last updated: 7 October 2021
Welsh: dyfais glanhau aer
English: air cleaning device
Status B
Subject: Environment
Part of speech: Noun, Feminine, Singular
Last updated: 4 February 2021
Welsh: dyfais gyd-gloi
English: interlock
Status B
Subject: Agriculture
Part of speech: Noun, Feminine, Singular
Plural: dyfeisiau cyd-gloi
Definition: Dyfais ddiogelwch sy'n atal peiriant, mecanwaith etc rhag gweithio mewn amgylchiadau anniogel. Mae'r rhain yn gyffredin ym myd amaeth.
Last updated: 13 May 2025
Welsh: dyfais gyflenwi
English: delivery device
Status C
Subject: Health
Part of speech: Noun, Feminine, Singular
Plural: dyfeisiau cyflenwi
Notes: Yng nghyd-destun meddyginiaeth am asthma.
Last updated: 9 December 2021
Welsh: dyfais gysylltu
English: connecting device
Status B
Subject: ICT
Part of speech: Noun, Feminine, Singular
Last updated: 19 July 2005
Welsh: dyfais i buro'r corff cyfan
English: whole-body disinfection device
Status B
Subject: Health
Part of speech: Noun, Feminine, Singular
Plural: dyfeisiau i buro'r corff cyfan
Last updated: 4 February 2021
Welsh: dyfais llaw ar gyfer EID
English: EID hand held device
Status C
Subject: Agriculture
Part of speech: Noun, Masculine, Singular
Plural: dyfeisiau llaw ar gyfer EID
Last updated: 16 March 2017
Welsh: dyfais llosgi olew gwastraff
English: waste oil burning appliance
Status C
Subject: Law
Part of speech: Noun, Masculine, Singular
Last updated: 30 April 2008
Welsh: dyfais llwybr llygad
English: eye-tracking device
Status A
Subject: ICT
Part of speech: Noun, Feminine, Singular
Plural: dyfeisiau llwybr llygad
Definition: Teclyn sy'n mesur safleoedd a symudiadau'r llygad.
Last updated: 9 January 2020
Welsh: dyfais mewnanadlu nicotin
English: nicotine inhaling device
Status A
Subject: Health
Part of speech: Noun, Feminine, Singular
Context: ‘Nicotine inhaling device’ a ddefnyddir ym Mil Iechyd y Cyhoedd am yr hyn a elwir yn fwy cyffredinol yn ‘e-cigarette’.
Last updated: 5 June 2015
Welsh: dyfais mod
English: mod device
Status B
Subject: Health
Part of speech: Noun, Feminine, Singular
Plural: dyfeisiau mod
Notes: Mae'r ffurf vape mod / mod fepio yn gyfystyr.
Last updated: 17 October 2023
Welsh: dyfais nebwleiddio
English: nebulizer device
Status B
Subject: Health
Part of speech: Noun, Feminine, Singular
Plural: dyfeisiau nebwleiddio
Last updated: 23 January 2025
Welsh: dyfais reoli
English: control device
Status B
Subject: Planning
Part of speech: Noun, Feminine, Singular
Plural: dyfeisiau rheoli
Definition: Yng nghyd-destun rheoliadau adeiladu, cydran mewn gwasanaethau sefydlog adeilad sy'n synhwyro a rheoli gwres, aer oer neu symudiad aer (ee thermostat neu synhwyrydd carbon deuocsid) mewn adeilad.
Last updated: 27 January 2026
Welsh: dyfais storio
English: storage device
Status B
Subject: ICT
Part of speech: Noun, Feminine, Singular
Last updated: 19 July 2005
Welsh: dyfais storio symudol
English: removable storage device
Status C
Subject: ICT
Part of speech: Noun, Feminine, Singular
Last updated: 4 February 2009
Welsh: dyfais wedi ei mewnblannu
English: implanted device
Status C
Subject: Health
Part of speech: Noun, Feminine, Singular
Plural: dyfeisiau wedi eu mewnblannu
Last updated: 9 July 2020
Welsh: Dyfan
English: Dyfan
Status A
Subject: Place-names
Part of speech: Proper noun
Notes: Ward etholiadol ym Mwrdeistref Sirol Bro Morgannwg. Dyma'r enwau a ragnodwyd yn Gymraeg a Saesneg ar gyfer y ward yng Ngorchymyn Bwrdeistref Sirol Bro Morgannwg (Trefniadau Etholiadol) 2021.
Last updated: 17 August 2022
Welsh: dyfarndal
English: award
Status A
Subject: Law
Part of speech: Noun, Masculine, Singular
Plural: dyfarndaliadau
Definition: Award of damages
Last updated: 28 December 2017
Welsh: dyfarndaliad am wasanaeth a roddwyd
English: past service award
Status B
Subject: Finance and statistics
Part of speech: Noun, Masculine, Singular
Plural: dyfarndaliadau am wasanaeth a roddwyd
Last updated: 12 June 2025
Welsh: dyfarndal pensiwn a gadwyd
English: preserved award
Status C
Subject: Personnel
Part of speech: Noun, Masculine, Singular
Last updated: 13 June 2011
Welsh: dyfarndalu
English: award
Status B
Subject: Law
Part of speech: Verb
Definition: To award damages
Context: of damages
Last updated: 31 July 2012
Welsh: dyfarniad
English: judgement
Status A
Subject: Law
Part of speech: Noun, Masculine, Singular
Plural: dyfarniadau
Last updated: 18 May 2021
Welsh: dyfarniad
English: ruling
Status C
Subject: Law
Part of speech: Noun, Masculine, Singular
Context: A determination by a judge.
Last updated: 9 June 2009
Welsh: dyfarniad
English: award
Status B
Subject: Justice and order
Part of speech: Noun, Masculine, Singular
Context: Decision after examination.
Last updated: 31 July 2012
Welsh: dyfarniad
English: adjudication
Status B
Subject: Justice and order
Part of speech: Noun, Masculine, Singular
Last updated: 2 August 2012