TermCymru

Results are displayed in alphabetical order.
English: deceptive
Welsh: dichellgar
Status C
Subject: Law
Part of speech: Adjective
Definition: O ran person, ee cael eiddo drwy ddichell.
Last Updated: 18 January 2005
English: dechlorane plus
Welsh: decloran plws
Status B
Subject: Environment
Part of speech: Noun, Masculine, Singular
Notes: Cyfansoddyn a ddefnyddir fel arafydd tân. Mae’n llygrydd organig parhaus.
Last Updated: 11 March 2025
English: dechlorination
Welsh: datglorineiddio
Status C
Subject: Environment
Part of speech: Verb
Last Updated: 20 May 2005
English: decibel
Welsh: desibel
Status C
Subject: ICT
Part of speech: Noun, Masculine, Singular
Definition: mesur sain
Last Updated: 20 October 2008
English: decide on (something)
Welsh: penderfynu ar (rywbeth)
Status C
Subject: Law
Part of speech: Verb
Last Updated: 16 February 2005
English: Deciding what's right: humanity in the wake of turbulence
Welsh: Penderfynu beth sy'n iawn: dyngarwch wedi terfysg
Status C
Subject: Personnel
Part of speech: Verb
Context: Darlith flynyddol 2009, Rheoli yng Ngwasanaeth Cyhoeddus Cymru
Last Updated: 27 January 2010
English: deciduous
Welsh: collddail
Status C
Subject: Environment
Part of speech: Adjective
Last Updated: 31 December 2008
English: deciduous oak
Welsh: derwen gollddail
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
English: deciduous tooth
Welsh: dant cyntaf
Status B
Subject: Health
Part of speech: Noun, Masculine, Singular
Plural: dannedd cyntaf
Last Updated: 2 April 2020
English: decile
Welsh: degradd
Status A
Subject: Finance and statistics
Part of speech: Noun, Masculine, Singular
Definition: Unrhyw un o'r is-setiau data o set o ddata a rannwyd yn 10 is-set ag iddynt amledd cyfartal.
Context: Yn ôl dadansoddiad mwy diweddar gan y Swyddfa Ystadegau Gwladol 37 , mae'r bwlch rhwng y mwyaf a'r lleiaf difreintiedig (gan ddefnyddio degraddau amddifadedd yn hytrach na phumedau) wedi parhau'n gymharol gyson dros y blynyddoedd diwethaf.
Last Updated: 25 July 2019
English: decimal
Welsh: degol
Status B
Subject: ICT
Part of speech: Adjective
Last Updated: 19 July 2005
English: decimal fraction
Welsh: ffracsiwn degol
Status C
Subject: Finance and statistics
Part of speech: Noun, Masculine, Singular
Last Updated: 17 May 2011
English: decimal notation
Welsh: nodiant degol
Status B
Subject: ICT
Part of speech: Noun, Masculine, Singular
Last Updated: 19 July 2005
English: decimal tab
Welsh: tab degol
Status B
Subject: ICT
Part of speech: Noun, Masculine, Singular
Last Updated: 19 July 2005
English: decinormal
Welsh: decinormal
Status B
Subject: Finance and statistics
Part of speech: Noun, Masculine, Singular
Definition: One‐tenth normal; i.e. denoting a solution of concentration 0.1 equivalents per litre.
Last Updated: 18 October 2016
English: DECIPHer
Welsh: DECIPHer
Status A
Subject: Health
Part of speech: Proper noun
Definition: Centre for the Development and Evaluation of Complex Interventions for Public Health Improvement. A consortium between the universities of Cardiff, Bristol and Swansea.
Notes: Dyma’r enw brand a ddefnyddir yn y ddwy iaith ar y Centre for Development, Evaluation, Complexity and Implementation in Public Health Improvement / y Ganolfan Gwerthuso a Datblygu Ymyriadau Cymhleth er mwyn Gwella Iechyd y Cyhoedd.
Last Updated: 6 July 2021
English: DECIPHer
Welsh: DECIPHer
Status A
Subject: Health
Part of speech: Proper noun
Notes: Dyma’r enwau brand ar Y Ganolfan Gwerthuso a Datblygu Ymyriadau Cymhleth er mwyn Gwella Iechyd y Cyhoedd / Centre for Development, Evaluation, Complexity and Implementation in Public Health Improvement.
Last Updated: 8 July 2021
English: decisional capacity
Welsh: galluedd penderfyniadol
Status B
Subject: Law
Part of speech: Noun, Masculine, Singular
Definition: Y galluedd meddyliol i wneud penderfyniad.
Last Updated: 18 May 2023
English: decision document
Welsh: dogfen penderfyniad
Status A
Subject: Law
Part of speech: Noun, Feminine, Singular
Plural: dogfennau penderfyniadau
Definition: Yn achos rhoi cydsyniad seilwaith, y gorchymyn cydsynio seilwaith ei hun neu'r ddogfen sy'n cofnodi y gwrthodwyd cydsyniad.
Last Updated: 23 March 2023
English: decision letter
Welsh: llythyr penderfyniad
Status C
Subject: Law
Part of speech: Noun, Masculine, Singular
Last Updated: 25 January 2007
English: decision maker
Welsh: penderfynwr
Status C
Subject: Personnel
Part of speech: Noun, Masculine, Singular
Last Updated: 8 December 2004
English: decision-making framework
Welsh: fframwaith penderfynu
Status A
Subject: Personnel
Part of speech: Noun, Masculine, Singular
Last Updated: 29 January 2013
English: decision making functions
Welsh: swyddogaethau penderfynu
Status C
Subject: Law
Part of speech: Noun, Plural
Last Updated: 2 November 2010
English: Decision-making Officer
Welsh: Swyddog Penderfynu
Status B
Subject: Personnel
Part of speech: Noun, Masculine, Singular
Notes: Rôl ym mhrosesau mewnol Llywodraeth Cymru ar gyfer ymdrin â chwynion ac ati. Penodir swyddog o’r fath ar gyfer pob achos yn unigol.
Last Updated: 11 July 2016
English: decision-making process
Welsh: y broses o wneud penderfyniadau
Status C
Subject: General
Part of speech: Noun, Feminine, Singular
Last Updated: 3 October 2003
English: decision notice
Welsh: hysbysiad penderfynu
Status A
Subject: Planning
Part of speech: Noun, Masculine, Singular
Plural: hysbysiadau penderfynu
Last Updated: 30 April 2024
English: decision paralysis
Welsh: parlys penderfynu
Status B
Subject: Health
Part of speech: Noun, Masculine, Singular
Definition: Sefyllfa pan fydd unigolyn yn cael ei orlethu gan nifer yr opsiynau sydd ar gael neu oblygiadau posibl y dewis. Gall hyn arwain at gyflwr o ddiffyg gweithredu neu o gnoi cil am gyfnod estynedig, a hynny yn aml yn achosi trallod ac yn effeithio ar y gallu i weithredu o ddydd i ddydd.
Last Updated: 10 October 2024
English: decision report
Welsh: adroddiad ar benderfyniad
Status C
Subject: Local government
Part of speech: Noun, Masculine, Singular
Last Updated: 17 March 2004
English: decision reviewer
Welsh: adolygydd penderfyniadau
Status A
Subject: Education
Part of speech: Noun, Masculine, Singular
Plural: adolygwyr penderfyniadau
Definition: Person neu banel o bobl a benodir gan Weinidogion Cymru i adolygu penderfyniadau'r Comisiwn Addysg Drydyddol ac Ymchwil
Last Updated: 21 November 2019
English: decision to treat
Welsh: penderfyniad i drin
Status B
Subject: Health
Part of speech: Noun, Masculine, Singular
Plural: penderfyniadau i drin
Last Updated: 21 July 2022
English: deck
Welsh: dec
Status C
Subject: Transport
Part of speech: Noun, Masculine, Singular
Definition: (of a bridge)
Last Updated: 4 September 2002
English: deck finishes
Welsh: gorffeniad y dec
Status C
Subject: Transport
Part of speech: Noun, Masculine, Singular
Last Updated: 12 May 2006
English: decking
Welsh: decin
Status A
Subject: Tourism and leisure
Part of speech: Noun, Masculine, Singular
Context: In a garden.
Last Updated: 20 November 2013
English: declarant
Welsh: datganydd
Status B
Subject: Local government
Part of speech: Noun, Masculine, Singular
Definition: ee datgan ar ffurflen pleidlais bost mai chi ydych chi
Last Updated: 21 March 2003
English: declaration
Welsh: datganiad
Status B
Subject: Local government
Part of speech: Noun, Masculine, Singular
Definition: ee ar ffurflen pleidlais bost, datganiad yn cadarnhau mai chi ydych chi
Last Updated: 21 March 2003
English: declaration
Welsh: declarasiwn
Status A
Subject: Law
Part of speech: Noun, Masculine, Singular
Context: Nid yw'n gyfystyr â "datganiad".
Last Updated: 20 November 2014
English: declaration as to election expenses
Welsh: datganiad ynghylch treuliau etholiad
Status B
Subject: Politics
Part of speech: Noun, Masculine, Singular
Context: “declaration as to election expenses” (“XX”) means a declaration made under article 55 or 56; …[...] Individual candidates: declaration as to election expenses 55.—(1) Each return delivered under article 54(1) must be accompanied by a declaration made by the individual candidate’s election agent in form 30 set out in Welsh and English in Schedule 10.
Notes: Yng nghyd-destun etholiadau. Daw'r testun cyd-destunol o Orchymyn Senedd Cymru (Cynrychiolaeth y Bobl) 2025 (drafft ymgynghori).
Last Updated: 14 January 2025
English: declaration of acceptance and participation
Welsh: datganiad derbyn a chyfranogi
Status C
Subject: Justice and order
Part of speech: Noun, Masculine, Singular
Last Updated: 30 June 2006
English: declaration of commitment
Welsh: datganiad o ymrwymiad
Status C
Subject: General
Part of speech: Noun, Masculine, Singular
Last Updated: 21 July 2010
English: declaration of eligibility
Welsh: datganiad o gymhwystra
Status A
Subject: Law
Part of speech: Noun, Masculine, Singular
Plural: datganiadau o gymhwystra
Last Updated: 29 November 2017
English: declaration of expenses
Welsh: datganiad treuliau
Status B
Subject: Local government
Part of speech: Noun, Masculine, Singular
Last Updated: 21 March 2003
English: declaration of identity
Welsh: datganiad ynghylch pwy ydych
Status B
Subject: Local government
Part of speech: Noun, Masculine, Singular
Definition: Wrth wneud cais am bleidlais bost, rhaid i chi a rhywun arall lofnodi ffurflen i brofi mai chi yw chi, fel petai.
Last Updated: 21 March 2003
English: declaration of intent
Welsh: datganiad o fwriad
Status B
Subject: General
Part of speech: Noun, Masculine, Singular
Plural: datganiadau o fwriad
Definition: Dogfen swyddogol sy'n datgan beth y mae person neu grŵp yn bwriadu ei wneud, ond nad oes ganddi rym cyfreithiol fel sydd gan gontract ffurfiol.
Context: Mae’r cynllun gweithredu hwn hefyd yn ymdrin â’n perthynas gynyddol â thalaith Québec, a ategwyd yn ddiweddar gan lofnodi’r Datganiad o Fwriad ym mis Chwefror 2020.
Last Updated: 12 November 2020
English: declaration of interest
Welsh: datganiad o fuddiant
Status B
Subject: General
Part of speech: Noun, Masculine, Singular
Plural: datganiadau o fuddiant
Last Updated: 21 February 2024
English: declaration of parentage
Welsh: datganiad o bwy yw'r rhieni
Status C
Subject: Social services
Part of speech: Noun, Masculine, Singular
Context: Term CAFCASS.
Last Updated: 11 July 2014
English: declaration of sales
Welsh: datganiad gwerthiant
Status C
Subject: Agriculture
Part of speech: Noun, Masculine, Singular
Definition: Pertaining to milk quotas.
Last Updated: 24 February 2005
English: declaration of trust
Welsh: gweithred ymddiriedolaeth
Status A
Subject: Law
Part of speech: Noun, Masculine, Singular
Definition: Also known as a "trust deed".
Last Updated: 9 August 2013
English: Declarations and Undertakings
Welsh: Datganiadau ac Ymrwymiadau
Status C
Subject: Agriculture
Part of speech: Noun, Plural
Definition: Ar ffurflenni cais.
Last Updated: 29 July 2003
English: Declaration & Signatory Sheet
Welsh: Datganiad a Dalen Llofnodwyr
Status C
Subject: Agriculture
Part of speech: Noun, Masculine, Singular
Context: Glastir (AWE)
Last Updated: 12 December 2011
English: Declaratory Order
Welsh: Gorchymyn Datganiadol
Status C
Subject: Law
Part of speech: Noun, Masculine, Singular
Last Updated: 19 April 2006