TermCymru

Results are displayed in Welsh alphabetical order A-Y
Welsh: diffodd
English: turn off
Status B
Subject: ICT
Part of speech: Verb
Last updated: 19 July 2005
Welsh: diffodd amlapio
English: wrap off
Status B
Subject: ICT
Part of speech: Verb
Last updated: 19 July 2005
Welsh: diffoddiad
English: outage
Status B
Subject: ICT
Part of speech: Noun, Masculine, Singular
Plural: diffoddiadau
Notes: Pan fo angen gwahaniaethu rhwng 'outage' a chysyniad arall a ddynodir â'r term Cymraeg 'toriad', ee 'cut' neu 'breach'. Fe'i defnyddir yn benodol yng nghyd-destun Rheoliadau Tracio Gwastraff yn Ddigidol (Cymru) 2026.
Last updated: 17 March 2026
Welsh: Diffoddwch e! Gwell colli galwad na cholli bywyd
English: Switch it off! Missing a call won't kill you
Status C
Subject: Environment
Part of speech: Verb
Definition: Campaign against using mobile phones whilst driving.
Last updated: 24 November 2003
Welsh: diffoddwr tân
English: firefighter
Status C
Subject: Fire and rescue
Part of speech: Noun, Masculine, Singular
Last updated: 12 October 2005
Welsh: diffoddwyr ar ddyletswydd yn ôl galw
English: retained duty firefighters
Status C
Subject: Fire and rescue
Part of speech: Noun, Plural
Definition: System y diffoddwyr tân rhan-amser sy'n ymateb i alwadau yn ôl y gofyn.
Last updated: 12 October 2005
Welsh: diffoddwyr tân wrth gefn
English: retained firefighters
Status C
Subject: Fire and rescue
Part of speech: Noun, Plural
Definition: Pobl sydd ar alw pan fo'r angen.
Last updated: 9 January 2003
Welsh: diffoddydd cludadwy
English: portable extinguisher
Status C
Subject: Fire and rescue
Part of speech: Noun, Masculine, Singular
Last updated: 28 September 2006
Welsh: diffoddydd tân
English: fire extinguisher
Status C
Subject: Fire and rescue
Part of speech: Noun, Masculine, Singular
Last updated: 28 September 2005
Welsh: Diffodd yr Awen: Hedd Wyn & Edward Thomas
English: Fallen Poets: Hedd Wyn & Edward Thomas
Status A
Subject: Culture and the arts
Part of speech: Proper noun
Notes: Arddangosfa yn Llyfrgell Genedlaethol Cymru, 2017.
Last updated: 17 October 2016
Welsh: diffrwythedd
English: deadweight
Status B
Subject: Finance and statistics
Part of speech: Noun, Masculine, Singular
Definition: ‘Deadweight’ refers to outcomes which would have occurred without intervention. Its scale can be estimated by assessing what would have happened in the ‘do minimum’ case, ensuring that due allowance is made for the other impacts which impact on net additionality.
Last updated: 8 July 2016
Welsh: diffrwythloni
English: sterilisation
Status C
Subject: Health
Part of speech: Verb
Definition: The action or process of sterilizing a person.
Last updated: 16 August 2006
Welsh: diffrwytho
English: sterilise
Status C
Subject: Agriculture
Part of speech: Verb
Context: Render unable to have offspring.
Last updated: 29 July 2003
Welsh: difftheria
English: diphtheria
Status C
Subject: Health
Part of speech: Noun, Masculine, Singular
Last updated: 6 April 2004
Welsh: Difftheria a thetanws
English: Diphtheria and tetanus
Status C
Subject: Health
Part of speech: Noun, Masculine, Singular
Definition: DT
Last updated: 14 August 2003
Welsh: difftheria dos isel
English: low dose diphtheria
Status C
Subject: Health
Part of speech: Noun, Masculine, Singular
Last updated: 15 August 2011
Welsh: Difftheria, tetanws a phertwsis anghellog
English: Diphtheria, tetanus and acellular pertussis
Status C
Subject: Health
Part of speech: Noun, Masculine, Singular
Definition: DTaP
Last updated: 14 August 2003
Welsh: Difftheria, tetanws a phertwsis celloedd cyfan (y pas)
English: Diphtheria, tetanus and whole-cell pertussis (whooping cough)
Status C
Subject: Health
Part of speech: Noun, Masculine, Singular
Definition: DTwP
Last updated: 10 August 2004
Welsh: Diffwys a Maenofferen
English: Diffwys a Maenofferen
Status A
Subject: Place-names
Part of speech: Proper noun
Notes: Ward etholiadol yn Sir Gwynedd. Dyma'r enwau a ragnodwyd yn Gymraeg a Saesneg ar gyfer y ward yng Ngorchymyn Sir Gwynedd (Trefniadau Etholiadol) 2021.
Last updated: 17 August 2022
Welsh: diffyg
English: shortfall
Status C
Subject: Education
Part of speech: Noun, Masculine, Singular
Definition: e.e. diffyg o 25 o leoedd mewn ysgol.
Last updated: 19 August 2003
Welsh: diffyg anadl
English: breathlessness
Status C
Subject: Health
Part of speech: Noun, Masculine, Singular
Last updated: 14 May 2008
Welsh: diffyg anadl
English: shortness of breath
Status A
Subject: Health
Part of speech: Noun, Masculine, Singular
Notes: Gallai ymadrodd fel "byr ei anadl" fod yn addas mewn rhai cyd-destunau.
Last updated: 26 March 2020
Welsh: diffyg anadl cronig
English: chronic breathlessness
Status C
Subject: Health
Part of speech: Noun, Masculine, Singular
Last updated: 16 October 2009
Welsh: diffyg ar y golwg
English: vision defect
Status B
Subject: Health
Part of speech: Noun, Masculine, Singular
Plural: diffygion ar y golwg
Last updated: 16 October 2023
Welsh: diffyg bwriadol
English: wilful default
Status A
Subject: Housing
Part of speech: Noun, Masculine, Singular
Last updated: 20 November 2014
Welsh: diffygdaliad
English: default
Status B
Subject: Justice and order
Part of speech: Noun, Masculine, Singular
Context: Missed payment.
Last updated: 9 August 2012
Welsh: diffygdalu
English: default
Status B
Subject: Justice and order
Part of speech: Verb
Context: Fail to make a payment.
Last updated: 9 August 2012
Welsh: diffygdalwr
English: defaulter
Status B
Subject: Justice and order
Part of speech: Noun, Masculine, Singular
Context: Person who has failed to make a payment.
Last updated: 9 August 2012
Welsh: diffyg diogeledd bwyd
English: food insecurity
Status B
Subject: Food
Part of speech: Noun, Masculine, Singular
Notes: Gweler y cofnod am food security / diogeledd bwyd am ddiffiniad o'r term hwnnw.
Last updated: 13 April 2022
Welsh: diffyg ecsocrin pancreatig
English: pancreatic exocrine insufficiency
Status C
Subject: Health
Part of speech: Noun, Masculine, Singular
Last updated: 13 June 2011
Welsh: diffyg fitamin B12
English: vitamin B12 deficiency
Status B
Subject: Health
Part of speech: Noun, Masculine, Singular
Last updated: 3 July 2024
Welsh: diffyg haearn
English: iron deficiency
Status A
Subject: Health
Part of speech: Noun, Masculine, Singular
Definition: Pan na fydd angen y corff am haearn yn cael ei ddiwallu gan yr haearn sy'n cael ei amsugno o'r deiet.
Last updated: 4 April 2019
Welsh: diffygiad
English: burnout
Status B
Subject: Health
Part of speech: Noun, Masculine, Singular
Definition: Anhwylder neu ymateb straen acíwt, sy'n cynnwys lludded a nodweddion eraill fel gorbryder, iselder ac amhariad ar berfformiad yn y gwaith. Mae'n gasgliad o ffenomenâu yn y cyd-destun galwedigaethol yn bennaf.
Notes: Weithiau defnyddir y term Saesneg ‘burnout’ mewn ystyron llai technegol, ond mae'r diffiniad yn adlewyrchu'r ddealltwriaeth gyffredinol o'r cysyniad yn y maes meddygol.
Last updated: 29 May 2025
Welsh: diffyg imiwnedd
English: immune deficiency
Status B
Subject: Health
Part of speech: Verb
Last updated: 19 March 2020
Welsh: diffyg imiwnedd cyfun difrifol
English: SCID
Status B
Subject: Health
Part of speech: Noun, Masculine, Singular
Definition: Grŵp o anhwylderau prin a gaiff eu hetifeddu, sy’n achosi annormaleddau mawr yn y system imiwnedd.
Notes: Dyma'r acronym a ddefnyddir am severe combined immunodeficiency.
Last updated: 26 March 2020
Welsh: diffyg imiwnedd cyfun difrifol
English: severe combined immunodeficiency
Status B
Subject: Health
Part of speech: Noun, Masculine, Singular
Definition: Grŵp o anhwylderau prin a gaiff eu hetifeddu, sy’n achosi annormaleddau mawr yn y system imiwnedd.
Last updated: 26 March 2020
Welsh: diffyg imiwnedd sylfaenol difrifol
English: severe primary immunodeficiency
Status C
Subject: Health
Part of speech: Noun, Masculine, Singular
Last updated: 15 August 2011
Welsh: diffygio
English: burn out
Status B
Subject: Health
Part of speech: Verb
Notes: Gweler y cofnod am burnout/diffygiad.
Last updated: 29 May 2025
Welsh: diffygion yn y farchnad
English: imperfections in the market
Status C
Subject: Economic development
Part of speech: Noun, Plural
Last updated: 27 January 2010
Welsh: diffyg mewn cyllid
English: funding deficit
Status C
Subject: Finance and statistics
Part of speech: Noun, Masculine, Singular
Last updated: 13 July 2006
Welsh: diffyg net
English: net deficit
Status C
Subject: Finance and statistics
Part of speech: Noun, Masculine, Singular
Last updated: 10 November 2004
Welsh: diffyg o ran darparwr
English: provider default
Status A
Subject: Housing
Part of speech: Noun, Masculine, Singular
Context: Help to Buy - Wales
Last updated: 22 January 2014
Welsh: diffyg refeniw
English: revenue shortfall
Status C
Subject: Finance and statistics
Part of speech: Noun, Masculine, Singular
Last updated: 22 July 2010
Welsh: diffyg rhuglder
English: dysfluency
Status C
Subject: Education
Part of speech: Noun, Masculine, Singular
Definition: Speech that exhibits deviations in continuity, fluidity, ease of rate and effort, with hesitations or repetition of sounds, words, or phrases; lack of skillfulness in speech.
Context: Atal dweud (a elwir hefyd yn siarad ag atal neu ddiffyg rhuglder) – lleferydd a nodweddir gan lawer o ailadrodd neu estyn synau, sillafau neu eiriau, neu gan lawer o betruso neu oedi sy'n tarfu ar lif rhythmig y lleferydd.
Last updated: 10 February 2016
Welsh: diffyg symudoldeb
English: hypomotility
Status B
Subject: Health
Part of speech: Noun, Masculine, Singular
Last updated: 9 May 2012
Welsh: diffyg traul
English: indigestion
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: diffyg twf
English: stagnation
Status C
Subject: Economic development
Part of speech: Noun, Masculine, Singular
Definition: in the economy
Last updated: 2 September 2004
Welsh: diffyg ymarfer corff
English: sedentary lifestyle
Status C
Subject: Health
Part of speech: Noun, Masculine, Singular
Last updated: 20 March 2013
Welsh: diffyg yn sgil cyfyngiadau ariannol
English: financially-constrained lack
Status B
Subject: Finance and statistics
Part of speech: Noun, Masculine, Singular
Plural: diffygion yn sgil cyfyngiadau ariannol
Definition: Ym maes ystadegau amddifadedd materol, methiant i fod yn berchen ar eitem hanfodol neu i allu cael gafael mewn gwasanaeth hanfodol oherwydd tlodi yn hytrach nag unrhyw reswm arall (ee dewis personol i fod heb rywbeth, neu resymau iechyd).
Last updated: 19 August 2025
Welsh: diffyg yn y farchnad
English: market failure
Status C
Subject: Economic development
Part of speech: Noun, Masculine, Singular
Last updated: 25 March 2010