TermCymru

Results are displayed in Welsh alphabetical order A-Y
Welsh: marciwr genetig
English: DNA marker
Status C
Subject: Agriculture
Part of speech: Noun, Masculine, Singular
Definition: Dilyniant o enynnau mewn cromosom.
Context: Mae’r dilyniant yn gallu amrywio rhwng unigolion gan ddangos felly a yw’r teithi y mae’n eu cynrychioli yn cael eu harddangos yn yr unigolyn dan sylw e.e. gallu buwch i odro, ac mae’n ymddangos yn yr un man ar y cromosom. Gweler hefyd 'genetic marker' sef fersiwn arall am yr un cysyniad.
Last updated: 23 September 2009
Welsh: marciwr genynnol
English: genetic marker
Status B
Subject: Health
Part of speech: Noun, Masculine, Singular
Plural: marcwyr genynnol
Definition: Dangosydd biolegol sy’n gysylltiedig â genynnau ac sy’n gallu helpu i nodi presenoldeb neu risg o salwch penodol.
Last updated: 1 October 2025
Welsh: marciwr imiwnedd
English: immune marker
Status C
Subject: Agriculture
Part of speech: Noun, Masculine, Singular
Definition: Rhywbeth mewn anifail/dyn sy’n dangos fod ganddo wrthgyrffynnau clefyd ac felly imiwnedd iddo.
Context: I’w ganfod mewn prawf microbiolegol.
Last updated: 9 November 2009
Welsh: marciwr mewnoli
English: indent marker
Status B
Subject: ICT
Part of speech: Noun, Masculine, Singular
Last updated: 19 July 2005
Welsh: marciwr nesaf
English: next marker
Status B
Subject: ICT
Part of speech: Noun, Masculine, Singular
Last updated: 19 July 2005
Welsh: marciwr transcriptomig
English: transcriptomic marker
Status B
Subject: Health
Part of speech: Noun, Masculine, Singular
Plural: marcwyr transcriptomig
Definition: Dangosydd biolegol sy’n seiliedig ar y transcriptom, sef set gyflawn o drawsgrifiadau RNA a gynhyrchir gan y genynnau.
Context: Mae technolegau’n cael eu datblygu i ganfod marcwyr transcriptomig ar gyfer canserau gynaecolegol.
Last updated: 1 October 2025
Welsh: marc penllanw
English: high water mark
Status B
Subject: Environment
Part of speech: Noun, Masculine, Singular
Plural: marciau penllanw
Definition: Ar fap, llinell yn dangos lle y bydd llanw'r môr yn cyrraedd pan fydd ar ei uchaf.
Last updated: 18 June 2024
Welsh: marc penllanw llanwau cyffredin
English: high water mark of ordinary tides
Status B
Subject: Environment
Part of speech: Noun, Masculine, Singular
Last updated: 18 June 2024
Welsh: marc penllanw llanwau cyffredin
English: HWMOT
Status B
Subject: Environment
Part of speech: Noun, Masculine, Singular
Notes: Dyma'r acronym Saesneg a ddefnyddir am high water mark of ordinary tides.
Last updated: 20 June 2024
Welsh: marc penllanw’r gorllanw
English: high water mark of spring tides
Status C
Subject: Environment
Part of speech: Noun, Masculine, Singular
Last updated: 21 February 2018
Welsh: marc safon
English: quality mark
Status C
Subject: Education
Part of speech: Noun, Masculine, Singular
Definition: Defnyddier hwn yng nghyd-destun sgiliau sylfaenol - dyna y mae'r Asiantaeth Sgiliau Sylfaenol yn ei ddefnyddio.
Last updated: 22 September 2005
Welsh: Marc Safon Sgiliau Sylfaenol
English: Basic Skills Quality Mark
Status A
Subject: Education
Definition: Yr Asiantaeth Sgiliau Sylfaenol
Last updated: 28 September 2005
Welsh: marc swyddogol
English: official mark
Status B
Subject: Local government
Part of speech: Noun, Masculine, Singular
Definition: Y tyllau y mae’r swyddog llywyddu yn eu rhoi ar bapur pleidleisio er mwyn dangos ei fod yn ddilys.
Last updated: 21 March 2003
Welsh: marc UKCA
English: UKCA marking
Status A
Subject: Economic development
Part of speech: Noun, Masculine, Singular
Definition: Marc a ddefnyddir ar gyfer nwyddau sy'n cael eu gosod ar y farchnad ym Mhrydain Fawr (Cymru, Lloegr a'r Alban). Mae'n berthnasol i'r rhan fwyaf o'r nwyddau oedd gynt angen y marc CE.
Notes: UKCA yw'r acronym Saesneg a ddefnyddir am UK Conformity Assessment.
Last updated: 10 June 2021
Welsh: marcwyr
English: markers
Status C
Subject: Environment
Part of speech: Noun, Plural
Last updated: 9 December 2004
Welsh: marcwyr dynesu
English: countdown markers
Status C
Subject: Transport
Part of speech: Noun, Plural
Last updated: 9 December 2004
Welsh: marcwyr tir
English: ground markers
Status C
Subject: Planning
Part of speech: Noun, Plural
Last updated: 13 May 2011
Welsh: marcwyr ymwrthedd i wrthfiotigau
English: antibiotic resistance markers
Status B
Subject: Agriculture
Part of speech: Noun, Plural
Definition: mewn biobeirianneg
Last updated: 30 July 2003
Welsh: marc y ddiadell neu'r eifre
English: flock or herd mark
Status C
Subject: Agriculture
Part of speech: Noun, Masculine, Singular
Definition: for sheep and goats
Last updated: 28 November 2007
Welsh: marc y ddiadell neu'r fuches
English: flock or herd mark
Status C
Subject: Agriculture
Part of speech: Noun, Masculine, Singular
Definition: for sheep and cattle
Last updated: 28 November 2007
Welsh: Marc Ysbrydoli
English: Inspire Mark
Status C
Subject: Tourism and leisure
Part of speech: Noun, Masculine, Singular
Context: Yng nghyd-destun Gemau Olympaidd 2012.
Last updated: 21 July 2011
Welsh: Mardi Gras Hoywon a Lesbiaid Cymru yng Nghaerdydd
English: Cardiff Wales Gay and Lesbian Mardi Gras
Status C
Subject: Tourism and leisure
Part of speech: Noun, Masculine, Singular
Last updated: 27 September 2006
Welsh: Marford a Hoseley
English: Marford and Hoseley
Status A
Subject: Place-names
Part of speech: Proper noun
Notes: Ward etholiadol ym Mwrdeistref Sirol Wrecsam. Dyma'r enwau a ragnodwyd yn Gymraeg a Saesneg ar gyfer y ward yng Ngorchymyn Bwrdeistref Sirol Wrecsam (Trefniadau Etholiadol) 2021.
Last updated: 17 August 2022
Welsh: Margam a Thai-bach
English: Margam and Tai-bach
Status A
Subject: Place-names
Part of speech: Proper noun
Notes: Ward etholiadol ym Mwrdeistref Sirol Castell-nedd Port Talbot. Dyma'r enwau a ragnodwyd yn Gymraeg a Saesneg ar gyfer y ward yng Ngorchymyn Bwrdeistref Sirol Castell-nedd Port Talbot (Trefniadau Etholiadol) 2021.
Last updated: 17 August 2022
Welsh: MARh
English: EIN
Status A
Subject: Welsh Government posts and departments
Part of speech: Noun, Feminine, Singular
Definition: Enterprise, Innovation and Networks
Last updated: 12 May 2006
Welsh: marina
English: marina
Status B
Subject: Planning
Part of speech: Noun, Masculine, Singular
Plural: marinas
Last updated: 2 April 2025
Welsh: Markham
English: Markham
Status A
Subject: Place-names
Part of speech: Proper noun
Context: Caerphilly
Last updated: 15 July 2013
Welsh: marmalêd
English: marmalade
Status C
Subject: Food
Part of speech: Noun, Masculine, Singular
Last updated: 1 December 2008
Welsh: maro
English: marrow
Status C
Subject: Environment
Part of speech: Noun, Masculine, Singular
Definition: vegetable
Last updated: 27 January 2004
Welsh: MARPOL
English: MARPOL
Status A
Subject: Titles of legislation
Part of speech: Noun, Masculine, Singular
Notes: Dyma'r acronym a ddefnyddir am Y Confensiwn Rhyngwladol er Atal Llygredd o Longau / International Convention for the Prevention of Pollution from Ships.
Last updated: 6 June 2019
Welsh: marquise
English: marquise
Status B
Subject: Food
Part of speech: Noun, Masculine, Singular
Definition: Math o bwdin
Last updated: 13 June 2019
Welsh: Marseille
English: Marseilles
Status B
Subject: Place-names
Part of speech: Proper noun
Last updated: 9 September 2003
Welsh: Marsh Road, Y Rhyl
English: Marsh Road, Rhyl
Status C
Subject: Place-names
Definition: in an address
Last updated: 5 March 2003
Welsh: Martinique
English: Martinique
Status A
Subject: Place-names
Part of speech: Proper noun
Notes: Safonwyd yr enw hwn gan ddilyn yr egwyddorion a nodir yn yr erthygl 'Dynodi enwau gwladwriaethau, tiriogaethau a chenhedloedd diwladwriaeth' yn yr Arddulliadur.
Last updated: 17 August 2021
Welsh: Martletwy
English: Martletwy
Status C
Subject: Place-names
Part of speech: Proper noun
Last updated: 9 October 2006
Welsh: Martletwy
English: Martletwy 
Status A
Subject: Place-names
Part of speech: Proper noun
Notes: Ward etholiadol yn Sir Benfro. Dyma'r enwau a ragnodwyd yn Gymraeg a Saesneg ar gyfer y ward yng Ngorchymyn Sir Benfro (Trefniadau Etholiadol) 2021.
Last updated: 17 August 2022
Welsh: Marton
English: Marton
Status A
Subject: Place-names
Part of speech: Proper noun
Definition: Lle yn Lloegr.
Last updated: 2 May 2013
Welsh: marw-anedig
English: stillborn
Status B
Subject: Health
Part of speech: Adjective
Last updated: 14 August 2025
Welsh: marw â chymorth
English: assisted dying
Status B
Subject: Health
Part of speech: Verb
Last updated: 9 April 2025
Welsh: marw â chymorth yn wirfoddol
English: voluntary assisted dying
Status B
Subject: Health
Part of speech: Verb
Last updated: 9 April 2025
Welsh: marw cyn pryd
English: premature death
Status C
Subject: Health
Part of speech: Verb
Last updated: 20 December 2007
Welsh: marw-enedigaeth
English: stillbirth
Status C
Subject: Health
Part of speech: Noun, Feminine, Singular
Last updated: 6 April 2004
Welsh: Marw gydag Urddas yng Nghymru
English: Dying Well Matters in Wales
Status A
Subject: Health
Part of speech: Verb
Last updated: 17 May 2018
Welsh: marwolaeth
English: mortality
Status C
Subject: Health
Part of speech: Noun, Masculine, Singular
Definition: eg mortality rate
Last updated: 6 April 2004
Welsh: marwolaeth
English: fatality
Status B
Subject: Justice and order
Part of speech: Noun, Feminine, Singular
Last updated: 29 August 2012
Welsh: marwolaeth amenedigol
English: perinatal mortality
Status C
Subject: Health
Part of speech: Noun, Feminine, Singular
Last updated: 6 April 2004
Welsh: marwolaeth annisgwyl sydyn
English: sudden unexpected death
Status C
Subject: Health
Part of speech: Noun, Feminine, Singular
Last updated: 17 November 2011
Welsh: marwolaethau amhendant
English: undetermined deaths
Status C
Subject: Health
Part of speech: Noun, Plural
Last updated: 17 July 2006
Welsh: marwolaethau cysylltiedig â chyffuriau
English: DRDs
Status C
Subject: Health
Part of speech: Noun, Plural
Definition: drug related deaths
Last updated: 27 April 2010
Welsh: marwolaethau sy’n gysylltiedig ag alcohol
English: alcohol-related deaths
Status C
Subject: Health
Part of speech: Noun, Plural
Last updated: 8 June 2015