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Welsh: niwclews bachog

Status C

Subject: Health

Part of speech: Noun, Masculine, Singular

Plural: niwcleysau bachog

Definition: Rhan o’r hypothalamws yn yr ymennydd dynol.

Context: Dangosodd yr ymchwil honno mewn tair astudiaeth post-mortem fach (ond ystadegol gadarn) am unigolion a oedd yn profi dysfforia ryweddol, bod dwy ran ddwyffurf y system rywiol - israniad canolog niwclews gwaelodol y stria terminalis (BSTc) a'r niwclews bachog - wedi'u gwahaniaethu yn groes i nodweddion cromosomaidd, cenhedlol a gonadaidd y system rywiol.

Last Updated: 21 April 2016

English: unclaimed animal penalty

Welsh: y gosb ar yr anifeiliaid na chafodd cais ei wneud arnynt

Status C

Subject: Agriculture

Part of speech: Noun, Feminine, Singular

Last Updated: 9 August 2004

English: unclassified road

Welsh: ffordd ddiddosbarth

Status C

Subject: Law

Part of speech: Noun, Feminine, Singular

Last Updated: 14 June 2005

English: UN Climate Change Conference of the Parties

Welsh: Cynhadledd Partïon y Cenhedloedd Unedig ar Newid Hinsawdd

Status B

Subject: Environment

Part of speech: Noun, Feminine, Singular

Last Updated: 12 November 2020

English: UNCLOS

Welsh: Confensiwn y Cenhedloedd Unedig ar Gyfraith y Môr

Status A

Subject: Law

Part of speech: Noun, Masculine, Singular

Last Updated: 28 February 2019

English: uncoated regenerated cellulose film

Welsh: caen cellwlos atgynyrchiedig heb araen

Status B

Subject: Law

Part of speech: Noun, Masculine, Singular

Definition: URCF

Last Updated: 25 July 2012

English: UN Committee for the Elimination of Discrimination

Welsh: Pwyllgor y Cenhedloedd Unedig ar Ddiddymu Gwahaniaethu

Status C

Subject: Social services

Part of speech: Noun, Masculine, Singular

Last Updated: 2 December 2004

English: uncompensated set-aside

Welsh: neilltir heb iawndal

Status C

Subject: Agriculture

Part of speech: Noun, Masculine, Singular

Last Updated: 29 July 2003

English: unconditional

Welsh: diamod

Status B

Subject: ICT

Part of speech: Adjective

Last Updated: 19 July 2005

English: unconditional discharge

Welsh: rhyddhad diamod

Status C

Subject: Justice and order

Part of speech: Noun, Masculine, Singular

Last Updated: 8 October 2003

English: unconditional forecasts

Welsh: rhagolygon diamod

Status B

Subject: Europe

Part of speech: Noun, Plural

Plural: rhagolygon diamod

Context: Mae hanes blaenorol rhagolygon o'r fath, a elwir weithiau'n “rhagolygon diamod” yn wael, gan adlewyrchu ansicrwydd anochel am y dyfodol.

Last Updated: 28 February 2019

English: unconference

Welsh: anghynhadledd

Status B

Subject: General

Part of speech: Noun, Feminine, Singular

Plural: anghynadleddau

Definition: Digwyddiad sy’n cael ei arwain gan y cyfranogwyr ac sy’n troi’r model cynhadledd draddodiadol ben i waered. Yn hytrach na rhaglen benodedig, prif siaradwyr a chyflwyniadau o’r brig i lawr, y cyfranogwyr eu hunain sy’n creu’r rhaglen ar ddiwrnod y digwyddiad. Gall unrhyw un gynnig pwnc, arwain trafodaeth neu ymuno â sesiynau.

Last Updated: 27 November 2025

English: UN Conference on Sustainable Development

Welsh: Uwch-gynhadledd y Cenhedloedd Unedig ar Ddatblygu Cynaliadwy

Status C

Subject: Economic development

Part of speech: Noun, Feminine, Singular

Last Updated: 29 June 2012

English: unconscious bias

Welsh: rhagfarn ddiarwybod

Status B

Subject: Personnel

Part of speech: Noun, Feminine, Singular

Plural: rhagfarnau diarwybod

Context: Yn ystod 2017-18 cynigiwyd dosbarth meistr ar Ragfarn Ddiarwybod, sy'n orfodol i’r holl Uwch Weision Sifil.

Last Updated: 21 March 2019

English: uncontaminated

Welsh: dihalog

Status A

Subject: Environment

Part of speech: Adjective

Last Updated: 7 October 2002

English: uncontentious works

Welsh: gwaith annadleuol

Status B

Subject: Estates and Cadw

Part of speech: Noun, Masculine, Singular

Context: Mewn rhai amgylchiadau gallai fod o fudd i heneb petai’r gwaith anawdurdodedig sydd arni yn cael ei gadw, yn enwedig pan fyddai gwaith i ddad-wneud y gwaith gwreiddiol yn arwain at fwy o ddifrod i’r heneb neu pan fyddai peidio â chynnal gwaith annadleuol yn gadael yr heneb yn fregus.

Last Updated: 14 June 2016

English: uncontested election

Welsh: etholiad nas ymleddir

Status B

Subject: Politics

Part of speech: Noun, Masculine, Singular

Plural: etholiadau nas ymleddir

Definition: Etholiad heb yr un ymgeisydd, neu etholiad â'r un nifer o ymgeiswyr ag o seddi (etholiad diwrthwynebiad)

Context: (3) At an uncontested constituency election, the statement of parties and persons nominated, in addition to showing the registered political parties and other persons standing nominated, must also— (a) set out the individual candidates or the registered political parties to whom seats have been allocated, together with the names of the party list candidates who are to fill such seats,

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: uncontested seat

Welsh: sedd ddiymgeisydd

Status B

Subject: Politics

Part of speech: Noun, Feminine, Singular

Plural: seddi diymgeisydd

Definition: Sedd na chynhelir etholiad ar ei chyfer am na safodd yr un ymgeisydd.

Last Updated: 26 January 2023

English: uncontested seat

Welsh: sedd ddiwrthwynebiad

Status B

Subject: Politics

Part of speech: Noun, Feminine, Singular

Plural: seddi diwrthwynebiad

Definition: Sedd na chynhelir etholiad ar ei chyfer am mai dim ond un ymgeisydd a safodd, neu lle na safodd cymaint â’r mwyafswm posibl o ddarpar gynrychiolwyr.

Last Updated: 26 January 2023

English: uncontrolled burning

Welsh: gwaith llosgi heb reolaeth

Status C

Subject: Fire and rescue

Part of speech: Noun, Masculine, Singular

Last Updated: 4 August 2010

English: uncontrolled disease

Welsh: clefyd heb ei reoli

Status B

Subject: Health

Part of speech: Noun, Masculine, Singular

Plural: clefydau heb eu rheoli

Last Updated: 25 November 2022

English: unconventional gas resource

Welsh: nwy anghonfensiynol

Status C

Subject: Environment

Part of speech: Noun, Masculine, Singular

Context: Bydd nwy’n parhau i chwarae rôl wrth newid i system ynni carbon isel, ac o ystyried heriau sicrwydd ynni, mae angen gwerthuso potensial nwy anghonfensiynol yng Nghymru a’r cyfleoedd economaidd a allai ddeillio o unrhyw ddatblygiad.

Last Updated: 5 September 2019

English: UN Convention on the Rights of Migrants

Welsh: Confensiwn y Cenhedloedd Unedig ar Hawliau Ymfudwyr

Status C

Subject: Social services

Part of speech: Noun, Masculine, Singular

Last Updated: 6 April 2011

English: UN Convention on the Rights of People with Disabilities

Welsh: Confensiwn y Cenhedloedd Unedig ar Hawliau Pobl ag Anableddau

Status B

Subject: Social services

Part of speech: Proper noun, Masculine, Singular

Notes: Teitl gan y Cenhedloedd Unedig. "Disabled people" / "pobl anabl" fyddai'r geiriad a ffefrid gan Lywodraeth Cymru. Gweler yr erthygl ar y Model Cymdeithasol o Anabledd yn yr Arddulliadur. Yn unol â'r Model, mae amhariad ("impairment", a elwid yn "nam" o'r blaen) yn nodwedd ar berson, a all effeithio ar ei ymddangosiad neu ar sut y mae ei gorff neu ei feddwl yn gweithio; caiff pobl anabl (y gellir hefyd cyfeirio atynt fel "pobl anabledig" neu "bobl sy'n cael eu hanablu") eu hanablu gan ffactorau allanol fel yr amgylchedd, polisi neu arferion, neu yn sgil methiant i ddarparu addasiadau ar eu cyfer; ac anabledd yw canlyniad anablu pobl sydd ag amhariadau.

Last Updated: 16 November 2023

English: UN Convention on the Rights of Persons with Disabilities

Welsh: Confensiwn y Cenhedloedd Unedig ar Hawliau Pobl ag Anableddau

Status B

Subject: General

Part of speech: Noun, Masculine, Singular

Notes: Teitl gan y Cenhedloedd Unedig. "Disabled people" / "pobl anabl" fyddai'r geiriad a ffefrid gan Lywodraeth Cymru. Gweler yr erthygl ar y Model Cymdeithasol o Anabledd yn yr Arddulliadur. Yn unol â'r Model, mae amhariad ("impairment", a elwid yn "nam" o'r blaen) yn nodwedd ar berson, a all effeithio ar ei ymddangosiad neu ar sut y mae ei gorff neu ei feddwl yn gweithio; caiff pobl anabl (y gellir hefyd cyfeirio atynt fel "pobl anabledig" neu "bobl sy'n cael eu hanablu") eu hanablu gan ffactorau allanol fel yr amgylchedd, polisi neu arferion, neu yn sgil methiant i ddarparu addasiadau ar eu cyfer; ac anabledd yw canlyniad anablu pobl sydd ag amhariadau.

Last Updated: 6 March 2025

English: UN Convention on the Rights of the Child

Welsh: Confensiwn y Cenhedloedd Unedig ar Hawliau'r Plentyn

Status C

Subject: Social services

Part of speech: Noun, Masculine, Singular

Last Updated: 16 April 2012

English: uncorrected refractive error

Welsh: cyfeiliornad plygiant heb ei gywiro

Status A

Subject: Health

Part of speech: Noun, Masculine, Singular

Plural: cyfeiliornadau plygiant heb eu cywiro

Definition: Anhwylder llygad a achosir gan afreoleidd-dra o ran siâp y llygad, nad yw wedi ei unioni neu ei wella drwy ddefnyddio teclyn megis sbectol.

Last Updated: 25 November 2022

English: uncover from bottom

Welsh: dadorchuddio o'r gwaelod

Status B

Subject: ICT

Part of speech: Verb

Last Updated: 19 July 2005

English: uncover from left

Welsh: dadorchuddio o'r chwith

Status B

Subject: ICT

Part of speech: Verb

Last Updated: 19 July 2005

English: uncover from right

Welsh: dadorchuddio o'r dde

Status B

Subject: ICT

Part of speech: Verb

Last Updated: 19 July 2005

English: uncover from top

Welsh: dadorchuddio o'r brig

Status B

Subject: ICT

Part of speech: Verb

Last Updated: 19 July 2005

English: UNCRC

Welsh: CCUHP

Status C

Subject: Personnel

Definition: United Nations Convention on the Rights of the Child

Last Updated: 22 October 2007

English: UNCRC - Let's Get It Right

Welsh: CCUHP - Gwneud Pethau'n Iawn

Status A

Subject: Social services

Definition: UNCRC = United Nations Convention on the Rights of the Child

Last Updated: 6 April 2009

English: uncropped

Welsh: heb gnwed/heb ei bori

Status C

Subject: Agriculture

Part of speech: Adjective

Definition: land

Last Updated: 19 May 2004

English: uncropped fallow margins

Welsh: ymylon braenar di-gnwd

Status C

Subject: Environment

Part of speech: Noun, Plural

Last Updated: 14 November 2007

English: uncropped grassland

Welsh: tir glas heb ei bori

Status C

Subject: Agriculture

Part of speech: Noun, Masculine, Singular

Last Updated: 19 May 2004

English: uncropped land

Welsh: tir heb gnwd / di-gnwd

Status C

Subject: Agriculture

Part of speech: Noun, Masculine, Singular

Last Updated: 29 July 2003

English: uncropped margins

Welsh: ymylon heb gnwd

Status C

Subject: Agriculture

Part of speech: Noun, Plural

Last Updated: 19 May 2004

English: UNCRPD

Welsh: Confensiwn y Cenhedloedd Unedig ar Hawliau Pobl ag Anableddau

Status B

Subject: Social services

Part of speech: Proper noun, Masculine, Singular

Definition: UN Convention on the Rights of People with Disabilities

Notes: Teitl gan y Cenhedloedd Unedig. "Disabled people" / "pobl anabl" fyddai'r geiriad a ffefrid gan Lywodraeth Cymru. Gweler yr erthygl ar y Model Cymdeithasol o Anabledd yn yr Arddulliadur. Yn unol â'r Model, mae amhariad ("impairment", a elwid yn "nam" o'r blaen) yn nodwedd ar berson, a all effeithio ar ei ymddangosiad neu ar sut y mae ei gorff neu ei feddwl yn gweithio; caiff pobl anabl (y gellir hefyd cyfeirio atynt fel "pobl anabledig" neu "bobl sy'n cael eu hanablu") eu hanablu gan ffactorau allanol fel yr amgylchedd, polisi neu arferion, neu yn sgil methiant i ddarparu addasiadau ar eu cyfer; ac anabledd yw canlyniad anablu pobl sydd ag amhariadau.

Last Updated: 14 November 2023

English: UNCTAD

Welsh: Cynhadledd y Cenhedloedd Unedig ar Fasnach a Datblygiad

Status C

Subject: Economic development

Part of speech: Proper noun, Feminine, Singular

Definition: United Nations Conference on Trade and Development

Last Updated: 11 January 2013

English: uncultivated land

Welsh: tir heb ei drin

Status C

Subject: Agriculture

Part of speech: Noun, Masculine, Singular

Last Updated: 3 October 2003

English: undefended

Welsh: nas amddiffynnir

Status B

Subject: Justice and order

Part of speech: Adjective

Last Updated: 1 August 2012

English: undefined

Welsh: anniffiniedig

Status B

Subject: ICT

Part of speech: Adjective

Last Updated: 19 July 2005

English: undelivered

Welsh: heb fynd i ben eu taith

Status B

Subject: Local government

Part of speech: Verb

Last Updated: 21 March 2003

English: under

Welsh: o dan

Status C

Subject: General

Part of speech: Preposition

Last Updated: 15 December 2010

English: Under2 Coalition

Welsh: Cynghrair Dan2

Status B

Subject: Environment

Part of speech: Noun, Masculine, Singular

Definition: Cynghrair i lywodraethau gwladwriaethau a rhanbarthau sy'n anelu at gadw lefel cynhesu byd eang o dan 2°C.

Last Updated: 14 March 2019

English: Under2 Coalition Steering Group for Europe

Welsh: Grŵp Llywio Ewropeaidd y Cynghrair Dan2

Status B

Subject: Environment

Part of speech: Noun, Masculine, Singular

Last Updated: 12 November 2020

English: underachieve

Welsh: tangyflawni

Status A

Subject: Education

Part of speech: Verb

Last Updated: 7 October 2002

English: underachievement

Welsh: tangyflawniad

Status A

Subject: Education

Part of speech: Noun, Masculine, Singular

Last Updated: 7 October 2002

English: underattain

Welsh: tangyrraedd

Status C

Subject: Education

Part of speech: Verb

Last Updated: 26 April 2010

TermCymru

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