TermCymru

Results are displayed in Welsh alphabetical order A-Y
Welsh: llygredd golau
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
Welsh: llygredd gwasgaredig
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
Welsh: llygredd sŵn
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
Welsh: llygredd sŵn amgylcheddol
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
Welsh: llygredd sy'n dod o un lle
English: point pollution
Status C
Subject: Environment
Part of speech: Noun, Masculine, Singular
Last updated: 17 October 2005
Welsh: llygredd tarddle penodol
English: point source pollution
Status B
Subject: Environment
Part of speech: Noun, Masculine, Singular
Last updated: 6 September 2024
Welsh: llygredd trawsffiniol
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
Welsh: llygredd y môr
English: marine pollution
Status C
Subject: Environment
Part of speech: Noun, Masculine, Singular
Last updated: 2 September 2004
Welsh: llygredigaeth
English: corruption
Status B
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: (1) An election is not liable to be avoided otherwise than under this article by reason of general corruption, bribery, treating or intimidation.
Notes: Daw'r testun cyd-destunol o Orchymyn Senedd Cymru (Cynrychiolaeth y Bobl) 2025 (drafft ymgynghori).
Last updated: 14 January 2025
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
Welsh: llygru cyrsiau dŵr gan faethynnau gwasgaredig
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
Welsh: llygrydd aer
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
Welsh: llygrydd a gludir yn yr aer
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
Welsh: llygryddion
English: pollutants
Status A
Subject: Environment
Part of speech: Noun, Plural
Last updated: 7 October 2002
Welsh: llygryddion organig parhaus
English: persistent organic pollutants
Status C
Subject: Environment
Part of speech: Noun, Plural
Definition: POPs
Last updated: 26 July 2004
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
Welsh: llyn dal silt
English: silt entrapment pond
Status C
Subject: Agriculture
Part of speech: Noun, Masculine, Singular
Last updated: 7 December 2011
Welsh: Llyn Efyrnwy
English: Lake Vyrnwy
Status C
Subject: Place-names
Part of speech: Proper noun
Last updated: 29 November 2005
Welsh: Llynges Frenhinol Wrth Gefn
English: Royal Navy Reserve
Status A
Subject: Politics
Part of speech: Proper noun, Feminine, Singular
Last updated: 4 July 2012
Welsh: llyngyr
English: worms
Status C
Subject: Agriculture
Part of speech: Noun, Plural
Definition: Parasitic worms.
Context: Defnyddir "llynger" hefyd.
Last updated: 2 February 2006
Welsh: llyngyr edau
English: threadworms
Status B
Subject: Health
Part of speech: Noun, Plural
Notes: Anhwylder y gellir ei drin drwy Wasanaeth Anhwylderau Cyffredin y GIG.
Last updated: 1 December 2022
Welsh: llyngyren
English: worm
Status C
Subject: Agriculture
Part of speech: Noun, Feminine, Singular
Context: Parasitic worm.
Last updated: 2 February 2006
Welsh: llyngyren dentaclog
English: tentacled lagoon worm
Status C
Subject: Animals
Part of speech: Noun, Feminine, Singular
Definition: EU Habitats Directive Annex II Species
Context: Alkmaria romijni
Last updated: 24 February 2014
Welsh: llyngyren fain
English: roundworm
Status B
Subject: Agriculture
Part of speech: Noun, Feminine, Singular
Plural: llyngyr main
Definition: Paraseit a welir mewn coluddyn anifail.
Last updated: 31 July 2025
Welsh: llyngyren ledog
English: flatworm
Status C
Subject: Animals
Part of speech: Noun, Feminine, Singular
Context: Phylum: Plathelminthes
Last updated: 24 February 2014
Welsh: llyngyren y stumog
English: barber's pole worm
Status C
Subject: Agriculture
Part of speech: Noun, Feminine, Singular
Definition: Haemonchus contortus.
Context: Also known as "stomach worm".
Last updated: 12 September 2007
Welsh: llyngyren y stumog
English: stomach worm
Status C
Subject: Agriculture
Part of speech: Noun, Feminine, Singular
Definition: Haemonchus contortus.
Context: Also known as "barber's pole worm".
Last updated: 12 September 2007
Welsh: llyngyr yr afu/iau
English: liver fluke
Status C
Subject: Agriculture
Part of speech: Noun, Plural
Last updated: 13 June 2011
Welsh: llyngyr yr ysgyfaint
English: lungworm
Status C
Subject: Agriculture
Part of speech: Noun, Plural
Context: Defnyddir "llynger" hefyd.
Last updated: 20 January 2010
Welsh: llyngyr y stumog
English: wireworm
Status C
Subject: Agriculture
Part of speech: Noun, Plural
Definition: In sheep.
Context: Defnyddir "llynger" hefyd.
Last updated: 20 December 2007
Welsh: llynmeirch
English: glanders
Status C
Subject: Agriculture
Part of speech: Noun, Masculine, Singular
Last updated: 5 October 2006
Welsh: Llyn Syfaddan
English: Llangorse Lake
Status A
Subject: Place-names
Part of speech: Proper noun
Definition: Nodwedd ddaearyddol yn Sir Frycheiniog
Last updated: 22 January 2004
Welsh: llyn syrffio
English: surf lagoon
Status B
Subject: Tourism and leisure
Part of speech: Noun, Masculine, Singular
Plural: llynnoedd syrffio
Definition: Cronfa artiffisial o ddŵr a gynlluniwyd yn benodol ar gyfer syrffio.
Last updated: 21 July 2022
Welsh: Llyn Tegid
English: Bala Lake
Status A
Subject: Place-names
Part of speech: Proper noun
Definition: Nodwedd ddaearyddol yng Ngwynedd
Last updated: 22 January 2004
Welsh: llyriad
English: plantain
Status B
Subject: Plants
Part of speech: Noun, Masculine, Singular
Notes: Mathau o blanhigion deiliog a elwir hefyd yn ‘plantago’ yn Saesneg. Nid dyma’r cofnod am y planhigyn trofannol tebyg i fanana sydd hefyd yn cael ei alw yn ‘plantain’, Musa paradisiaca.
Last updated: 14 September 2016
Welsh: llyriad
English: plantago
Status B
Subject: Plants
Part of speech: Noun, Masculine, Singular
Plural: llyriaid
Notes: Mathau o blanhigion deiliog a elwir hefyd yn ‘plantain’ yn Saesneg.
Last updated: 14 September 2016
Welsh: llyriad corn carw
English: sea buck’s-horn plantain
Status C
Subject: Plants
Part of speech: Noun, Masculine, Singular
Last updated: 26 June 2012
Welsh: llyriad-y-dŵr arnofiol
English: floating-leaved water plantain
Status C
Subject: Environment
Part of speech: Noun, Masculine, Singular
Definition: luronium natans
Last updated: 10 August 2004
Welsh: llyriad yr ais
English: ribwort plantain
Status A
Subject: Plants
Part of speech: Noun, Masculine, Singular
Plural: llyriaid yr ais
Definition: plantago lanceolata
Last updated: 21 June 2022
Welsh: llyrlys
English: samphire
Status B
Subject: Food
Part of speech: Noun, Masculine, Singular
Notes: Dyma’r term i’w ddefnyddio am ‘samphire’ yn gyffredinol yng nghyd-destun bwyd, pan nad yw’r rhywogaeth benodol yn hysbys. Mae enwau eraill ar wahanol rywogaethau y planhigyn; gweler y cofnodion penodol yn TermCymru am y rheini.
Last updated: 14 September 2016
Welsh: llyrlys cyffredin
English: common samphire
Status B
Subject: Plants
Part of speech: Noun, Masculine, Singular
Definition: Salicornia europaea
Notes: Defnyddir ‘llyrlys’ yn unig am ‘samphire’ yng nghyd-destun bwyd. Yr enw mwyaf cyffredin yn Saesneg am ‘common samphire’ yw ‘common glasswort’.
Last updated: 14 September 2016
Welsh: llyrlys cyffredin
English: common glasswort
Status B
Subject: Plants
Part of speech: Noun, Masculine, Singular
Definition: Salicornia europaea
Notes: Defnyddir ‘common samphire’ am y rhywogaeth hon hefyd, yn Saesneg.
Last updated: 14 September 2016
Welsh: Llys Achosion Teuluol
English: Family Proceedings Court
Status C
Subject: Law
Part of speech: Noun, Masculine, Singular
Context: FPC
Last updated: 19 September 2008