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TermCymru

77618 results
Results are displayed in Welsh alphabetical order A-Y
English: eye-witness
Status B
Subject: Justice and order
Part of speech: Noun, Masculine, Singular
Last updated: 14 August 2012
English: ox-eye daisy
Status A
Subject: Plants
Part of speech: Noun, Masculine, Singular
Definition: leucanthemum vulgare
Last updated: 21 June 2022
English: parson's eye
Status A
Subject: Agriculture
Part of speech: Adjective
Definition: Horse markings
Last updated: 29 April 2005
English: Inside knowledge
Status C
Subject: Agriculture
Part of speech: Noun, Masculine, Singular
Definition: ADAS staff weekly circular.
Last updated: 6 September 2011
Welsh: llygaeron
English: cranberries
Status A
Subject: Plants
Part of speech: Noun, Plural
Definition: Vaccinium oxycoccos
Last updated: 16 January 2013
English: American cranberries
Status A
Subject: Plants
Part of speech: Noun, Plural
Definition: Vaccinium microcarpum
Context: Also known as "small cranberries".
Last updated: 16 January 2013
English: small cranberries
Status A
Subject: Plants
Part of speech: Noun, Plural
Definition: Vaccinium microcarpum
Context: Also known as "American cranberries".
Last updated: 16 January 2013
English: dry eye
Status B
Subject: Health
Part of speech: Noun, Plural
Definition: Cyflwr a gaiff ei achosi pan na all y dagrau wlychu'r llygaid yn ddigonol.
Notes: Anhwylder y gellir ei drin drwy Wasanaeth Anhwylderau Cyffredin y GIG. Weithiau defnyddir y ffurf 'dry eye' yn Saesneg; argymhellir 'llygaid sych' yn Gymraeg bob amser.
Last updated: 2 October 2024
Welsh: llygoden
English: mouse
Status A
Subject: Environment
Part of speech: Noun, Feminine, Singular
Definition: animal and IT mouse
Last updated: 2 September 2004
English: bank vole
Status A
Subject: Animals
Part of speech: Noun, Feminine, Singular
Plural: llygod pengrwn coch
Definition: Clethrionomys glareolus
Last updated: 11 September 2024
English: water vole
Status B
Subject: Animals
Part of speech: Noun, Feminine, Singular
Plural: llygod pengrwn y dŵr
Definition: Arvicola terrestris
Notes: Mae "llygoden y dŵr" hefyd yn dderbyniol.
Last updated: 9 February 2026
English: field vole
Status C
Subject: Animals
Part of speech: Noun, Feminine, Singular
Plural: llygod (pengrwn) y gwair
Last updated: 7 January 2025
English: brown rat
Status C
Subject: Animals
Part of speech: Noun, Feminine, Singular
Last updated: 22 April 2009
English: yellow-necked mouse
Status C
Subject: Animals
Part of speech: Noun, Feminine, Singular
Last updated: 22 April 2009
English: mouse wheel
Status B
Subject: ICT
Part of speech: Noun, Feminine, Singular
Last updated: 19 July 2005
English: wood mouse
Status C
Subject: Animals
Part of speech: Noun, Feminine, Singular
Last updated: 22 April 2009
English: harvest mouse
Status C
Subject: Animals
Part of speech: Noun, Feminine, Singular
Last updated: 19 August 2010
English: harvest mouse
Status B
Subject: Animals
Part of speech: Noun, Feminine, Singular
Plural: llygod yr ŷd
Definition: Micromys minutus
Last updated: 8 February 2017
Welsh: llygredd
English: corruption
Status B
Subject: ICT
Part of speech: Noun, Masculine, Singular
Last updated: 19 July 2005
Welsh: llygredd
English: pollution
Status C
Subject: Environment
Part of speech: Noun, Masculine, Singular
Last updated: 23 July 2003
Welsh: llygredd
English: sleaze
Status C
Subject: General
Part of speech: Noun, Masculine, Singular
Last updated: 3 October 2003
English: air pollution
Status A
Subject: Environment
Part of speech: Noun, Masculine, Singular
Definition: Unrhyw gyfrwng cemegol, ffisegol neu fiolegol sy'n addasu nodweddion naturiol yr atmosffer a thrwy hynny yn halogi'r amgylchedd, boed hynny o dan do neu yn yr awyr agored.
Last updated: 26 January 2023
English: airborne pollution
Status B
Subject: Environment
Part of speech: Noun, Masculine, Singular
Context: Bydd lleihau lefelau llygredd a gludir yn yr aer ledled Cymru, i derfynau deddfwriaethol o leiaf ac, os yn bosibl, yn llawer is na hynny, yn gwneud cyfraniad sylweddol at y rhan fwyaf o'n Nodau Llesiant Cenedlaethol.
Last updated: 17 September 2024
English: agricultural pollution
Status B
Subject: Environment
Part of speech: Noun, Masculine, Singular
Context: Heddiw, rwy’n cyhoeddi fy mhenderfyniad i gyflwyno rheoliadau a fydd yn gymwys i Gymru gyfan ar gyfer ymdrin ag effaith sylweddol a pharhaus llygredd amaethyddol ar iechyd ac ansawdd ein hafonydd, ein llynnoedd a’n nentydd.
Last updated: 16 September 2024
English: industrial pollution
Status B
Subject: Environment
Part of speech: Noun, Masculine, Singular
Context: Rydym wedi cyflawni gwaith o safon uchel gyson i reoli llygredd diwydiannol ledled Cymru, rhywbeth sy'n hanfodol i ddiogelu ein hamgylchedd ac iechyd y cyhoedd, yn arbennig dinasyddion sy'n agored i niwed a rhai sy'n byw mewn ardaloedd difreintiedig.
Last updated: 16 September 2024
English: diffuse water pollution
Status C
Subject: Environment
Part of speech: Noun, Masculine, Singular
Last updated: 14 April 2004
English: light pollution
Status C
Subject: Environment
Part of speech: Noun, Masculine, Singular
Definition: Gan gymryd y bydd yn amlwg o'r cyd-destun mai enw yw 'golau' yma.
Last updated: 28 February 2005
English: diffuse pollution
Status B
Subject: Environment
Part of speech: Noun, Masculine, Singular
Definition: Llygryddion posibl a gaiff eu rhyddhau o amryw o ffynonellau a all, fesul achos unigol, fod heb unrhyw effaith ar yr amgylchedd dŵr ond a all, ar raddfa'r ddalgylch, gael effaith sylweddol.
Last updated: 22 September 2022
English: noise pollution
Status A
Subject: Environment
Part of speech: Noun, Masculine, Singular
Definition: Synau niweidiol neu nas dymunir yn yr amgylchedd, y gellir eu mesur a'u cyfartaleddu dros gyfnod o amser mewn achosion penodol.
Last updated: 26 January 2023
English: environmental noise pollution
Status B
Subject: Environment
Part of speech: Noun, Masculine, Singular
Context: Mae llygredd sŵn amgylcheddol a gludir yn yr awyr, sy'n golygu sŵn annymunol neu niweidiol o drafnidiaeth a diwydiant, wedi cael ei raddio gan WHO fel yr ail gyfrannwr amgylcheddol mwyaf at faich clefyd yn Ewrop ar ôl llygredd aer yr amgylchedd.
Last updated: 16 September 2024
English: point pollution
Status C
Subject: Environment
Part of speech: Noun, Masculine, Singular
Last updated: 17 October 2005
English: point source pollution
Status B
Subject: Environment
Part of speech: Noun, Masculine, Singular
Last updated: 6 September 2024
English: trans-boundary pollution
Status B
Subject: Environment
Part of speech: Noun, Masculine, Singular
Context: Rydym hefyd yn gweithio gyda gweinyddiaethau eraill y Llywodraeth i reoli allyriadau a llygredd trawsffiniol er mwyn cyflawni ymrwymiadau i leihau allyriadau o fewn y DU mewn perthynas â phump o lygryddion aer niweidiol.
Last updated: 16 September 2024
English: marine pollution
Status C
Subject: Environment
Part of speech: Noun, Masculine, Singular
Last updated: 2 September 2004
English: corruption
Status A
Subject: Justice and order
Part of speech: Noun, Feminine, Singular
Definition: Yn bennaf yn y DU, troseddau sy'n ymwneud â llwgrwobrwyo o dan Ddeddf Llwgrwobrwyo 2010.
Context: Dirymu etholiad am lygredigaeth gyffredinol: Mae etholiad person yn ddi-rym, ac mae'r person hwnnw’n anghymwys i gael ei ethol i lenwi unrhyw seddi gwag y cynhaliwyd yr etholiad ar eu cyfer pan ddangosir (a) bod gweithred o arfer lwgr neu anghyfreithlon neu daliad neu gyflogaeth anghyfreithlon wedi ei chyflawni at ddibenion hyrwyddo neu beri etholiad y person hwnnw, a (b) y gallai’r weithred honno fod wedi effeithio ar ganlyniad yr etholiad.
Notes: Daw'r testun cyd-destunol o Orchymyn Senedd Cymru (Cynrychiolaeth y Bobl) 2025.
Last updated: 23 March 2026
Welsh: llygru
English: corrupt
Status B
Subject: ICT
Part of speech: Verb
Last updated: 19 July 2005
Welsh: llygru
English: pollute
Status A
Subject: Environment
Part of speech: Verb
Last updated: 7 October 2002
English: diffuse pollution of nutrients into watercourses
Status C
Subject: Agriculture
Part of speech: Verb
Last updated: 19 August 2010
Welsh: llygrwr
English: polluter
Status C
Subject: Environment
Part of speech: Noun, Masculine, Singular
Last updated: 6 April 2004
Welsh: llygrydd
English: pollutant
Status A
Subject: Environment
Part of speech: Noun, Masculine, Singular
Definition: NID llygryn
Last updated: 7 October 2002
English: air pollutant
Status B
Subject: Environment
Part of speech: Noun, Masculine, Singular
Plural: llygryddion aer
Definition: Sylwedd yn yr aer a all, mewn crynodiad digon uchel, fod yn niweidiol i bobl, anifeiliaid, planhigion neu ddeunyddiau. Gall fod yn unrhyw fath o fater, naturiol neu artiffisial, a all gael ei gludo yn yr aer.
Last updated: 19 September 2024
English: airborne pollutant
Status B
Subject: Environment
Part of speech: Noun, Masculine, Singular
Plural: llygryddion a gludir yn yr aer
Context: Byddwn yn sicrhau gostyngiad cynaliadwy a pharhaus yn allyriadau llygryddion a gludir yn yr aer o'r diwydiant drwy archwilio cyfleoedd i weithio gyda sectorau allweddol i leihau allyriadau ymhellach
Last updated: 17 September 2024
English: pollutants
Status A
Subject: Environment
Part of speech: Noun, Plural
Last updated: 7 October 2002
English: persistent organic pollutant
Status B
Subject: Environment
Part of speech: Noun, Masculine, Singular
Plural: llygryddion organig parhaus
Definition: Sylwedd cemegol sy'n gwrthsefyll y broses o ddadelfennu, ac felly'n parhau yn ddigyfnewid yn yr amgylchedd am gyfnodau hir o amser.
Notes: Defnyddir yr acronymau POP a POPs yn gyffredin yn Saesneg.
Last updated: 17 March 2026
English: POP
Status B
Subject: Environment
Part of speech: Noun, Masculine, Singular
Plural: llygryddion organig parhaus
Definition: Sylwedd cemegol sy'n gwrthsefyll y broses o ddadelfennu, ac felly'n parhau yn ddigyfnewid yn yr amgylchedd am gyfnodau hir o amser.
Notes: Dyma'r acronym Saesneg a ddefnyddir yn gyffredin mewn amryw gyd-destunau am "persistent organic pollutant". Mae'r ffurf luosog POPs hefyd yn gyffredin.
Last updated: 17 March 2026
Welsh: llygwyn
English: salt bush
Status C
Subject: Plants
Part of speech: Noun, Masculine, Singular
Context: Teulu o blanhigion
Last updated: 26 June 2012
Welsh: llymrïen
English: sand eel
Status A
Subject: Animals
Part of speech: Noun, Feminine, Singular
Plural: llymrïaid
Definition: Ammodytes tobianus
Last updated: 14 March 2019
Welsh: llyncdwll
English: sinkhole
Status A
Subject: Environment
Part of speech: Noun, Masculine, Singular
Context: Lluosog: llyncdyllau.
Last updated: 23 October 2013
Welsh: Llynclys
English: Llynclys
Status A
Subject: Place-names
Part of speech: Proper noun
Definition: Lle yn Lloegr.
Last updated: 2 May 2013
Welsh: llyncu
English: ingest
Status C
Subject: Health
Part of speech: Verb
Definition: Yng nghyd-destun ffliw adar.
Last updated: 27 October 2005