TermCymru

Results are displayed in English alphabetical order A-Z

Welsh: dirprwyon

Status C

Subject: Committees

Part of speech: Noun, Plural

Definition: 'Dirprwy' yw Aelod sy'n mynychu cyfarfod pwyllgor yn lle un o gynrychiolwyr swyddogol ei blaid ar y pwyllgor hwnnw.

Last Updated: 24 June 2004

English: substitution therapy

Welsh: therapi amnewid

Status C

Subject: Health

Part of speech: Noun, Masculine, Singular

Definition: The medical procedure of replacing an illegal opiate drug with a longer acting but less euphoric opiate that is taken under medical supervision.

Last Updated: 15 February 2010

English: substructure

Welsh: is-strwythur

Status A

Subject: Housing

Part of speech: Noun, Masculine, Singular

Context: Of a building.

Last Updated: 16 September 2013

English: sub-subcontract

Welsh: is-is-gontractio

Status B

Subject: Law

Part of speech: Verb

Last Updated: 18 November 2025

English: sub-subcontractor

Welsh: is-is-gontractwr

Status B

Subject: Law

Part of speech: Noun, Masculine, Singular

Plural: is-is-gontractwyr

Definition: Endid neu gwmni sy’n cael ei gontractio gan is-gontractwr i gyflawni agwedd (arbenigol, gan amlaf) ar waith sydd wedi’i is-gontractio i’r is-gontractwr. Nid yw trefniadau o’r fath yn anarferol yn y diwydiant adeiladu.

Last Updated: 18 November 2025

English: sub-surface temperature

Welsh: tymheredd o dan wyneb y môr

Status C

Subject: Environment

Part of speech: Noun, Masculine, Singular

Last Updated: 7 November 2011

English: sub-tenancies

Welsh: is-denantiaethau

Status C

Subject: Law

Part of speech: Noun, Plural

Last Updated: 13 August 2004

English: sub-tenancy

Welsh: is-denantiaeth

Status C

Subject: Law

Part of speech: Noun, Feminine, Singular

Last Updated: 13 August 2004

English: sub-tenant

Welsh: is-denant

Status B

Subject: Law

Part of speech: Noun, Masculine, Singular

Plural: is-denantiaid

Definition: Person neu sefydliad sy'n rhentu adeilad cyfan neu ran ohono oddi wrth rywun sy'n rhentu oddi wrth y landlord.

Last Updated: 2 December 2025

English: sub-tidal

Welsh: islanwol

Status C

Subject: Environment

Part of speech: Adjective

Last Updated: 20 April 2012

English: sub-tidal area

Welsh: yr ardal islaw'r llanw

Status C

Subject: Environment

Part of speech: Noun, Feminine, Singular

Definition: Y rhan sydd wastad o dan y dŵr ar lan y môr sydd nesaf at y trai mwyaf.

Last Updated: 25 November 2009

English: subtidal bedrock reef

Welsh: riff creigwelyau islanw

Status B

Subject: Environment

Part of speech: Noun, Masculine, Singular

Plural: riffau creigwelyau islanw

Notes: Math ar gynefin morol.

Last Updated: 22 September 2022

English: subtidal biogenic reef

Welsh: riff biogenig islanw

Status A

Subject: Environment

Part of speech: Noun, Masculine, Singular

Notes: Dyma derm y Cyd-bwyllgor Cadwraeth Natur ar gyfer y biotop hwn, sy’n seiliedig ar system ddosbarthu EUNIS o gynefinoedd morol. Yn system ddosbarthu EUNIS, “sublittoral biogenic reef on sediment” yw’r term cyfatebol. Gweler y cofnod am y term hwnnw am fwy o wybodaeth, gan gynnwys diffiniad.

Last Updated: 12 October 2016

English: subtidal boulder and cobble reef

Welsh: riff clogfeini a choblau islanw

Status B

Subject: Environment

Part of speech: Noun, Masculine, Singular

Plural: riffau clogfeini a choblau islanw

Notes: Math ar gynefin morol.

Last Updated: 22 September 2022

English: subtidal coarse sediment

Welsh: gwaddod bras islanw

Status A

Subject: Environment

Part of speech: Noun, Masculine, Singular

Notes: Dyma derm y Cyd-bwyllgor Cadwraeth Natur ar gyfer y biotop hwn, sy’n seiliedig ar system ddosbarthu EUNIS o gynefinoedd morol. Yn system ddosbarthu EUNIS, “sublittoral coarse sediment” yw’r term cyfatebol. Gweler y cofnod am y term hwnnw am fwy o wybodaeth, gan gynnwys diffiniad.

Last Updated: 13 October 2016

English: subtidal mixed sediments

Welsh: gwaddod cymysg islanw

Status A

Subject: Environment

Part of speech: Noun, Masculine, Singular

Notes: Dyma derm y Cyd-bwyllgor Cadwraeth Natur ar gyfer y biotop hwn, sy’n seiliedig ar system ddosbarthu EUNIS o gynefinoedd morol. Yn system ddosbarthu EUNIS, “sublittoral mixed sediment” yw’r term cyfatebol. Gweler y cofnod am y term hwnnw am fwy o wybodaeth, gan gynnwys diffiniad.

Last Updated: 13 October 2016

English: subtidal mud

Welsh: llaid islanw

Status A

Subject: Environment

Part of speech: Noun, Masculine, Singular

Notes: Dyma derm y Cyd-bwyllgor Cadwraeth Natur ar gyfer y biotop hwn, sy’n seiliedig ar system ddosbarthu EUNIS o gynefinoedd morol. Yn system ddosbarthu EUNIS, “sublittoral cohesive mud and sandy mud communities ” yw’r term cyfatebol. Gweler y cofnod am y term hwnnw am fwy o wybodaeth, gan gynnwys diffiniad.

Last Updated: 13 October 2016

English: subtidal mussel bed on rock

Welsh: gwely cregyn gleision islanw ar greigiau

Status B

Subject: Environment

Part of speech: Noun, Masculine, Singular

Plural: gwelyau cregyn gleision islanw ar greigiau

Notes: Math ar gynefin morol.

Last Updated: 22 September 2022

English: subtidal sand

Welsh: tywod islanw

Status A

Subject: Environment

Part of speech: Noun, Masculine, Singular

Notes: Dyma derm y Cyd-bwyllgor Cadwraeth Natur ar gyfer y biotop hwn, sy’n seiliedig ar system ddosbarthu EUNIS o gynefinoedd morol. Yn system ddosbarthu EUNIS, “sublittoral sand and muddy sand” yw’r term cyfatebol. Gweler y cofnod am y term hwnnw am fwy o wybodaeth, gan gynnwys diffiniad.

Last Updated: 13 October 2016

English: subtidal seaweed dominated communities on sediment

Welsh: cymunedau gwymon islanw ar waddod

Status A

Subject: Environment

Part of speech: Noun, Plural

Notes: Dyma derm y Cyd-bwyllgor Cadwraeth Natur ar gyfer y biotop hwn, sy’n seiliedig ar system ddosbarthu EUNIS o gynefinoedd morol. Yn system ddosbarthu EUNIS, “sublittoral macrophyte-dominated communities on sediment” yw’r term cyfatebol. Gweler y cofnod am y term hwnnw am fwy o wybodaeth, gan gynnwys diffiniad.

Last Updated: 13 October 2016

English: subtitle

Welsh: isdeitlo

Status B

Subject: ICT

Part of speech: Verb

Last Updated: 19 July 2005

English: subtitle

Welsh: isdeitl

Status B

Subject: ICT

Part of speech: Noun, Masculine, Singular

Last Updated: 19 July 2005

English: subtotal

Welsh: is-gyfanswm

Status A

Subject: Finance and statistics

Part of speech: Noun, Masculine, Singular

Last Updated: 28 May 2010

English: sub-tropics

Welsh: is-drofannau

Status C

Subject: Environment

Part of speech: Noun, Plural

Last Updated: 25 March 2010

English: subtype

Welsh: is-deip

Status C

Subject: Health

Part of speech: Noun, Masculine, Singular

Definition: Yng nghyd-destun ffliw adar.

Last Updated: 27 October 2005

English: suburb

Welsh: maestref

Status C

Subject: Planning

Part of speech: Noun, Feminine, Singular

Last Updated: 23 July 2003

English: sub-variant

Welsh: is-amrywiolyn

Status B

Subject: Health

Part of speech: Noun, Masculine, Singular

Plural: is-amywiolion

Last Updated: 31 March 2022

English: subway

Welsh: tanlwybr

Status A

Subject: Planning

Part of speech: Noun, Masculine, Singular

Last Updated: 5 November 2004

English: sub zone

Welsh: is-barth

Status C

Subject: Planning

Part of speech: Noun, Masculine, Singular

Last Updated: 23 July 2003

English: succeed

Welsh: olynu

Status C

Subject: Housing

Part of speech: Verb

Definition: to a tenancy

Last Updated: 17 March 2009

English: Successful Foundations and Opportunities

Welsh: Sylfeini a Chyfleoedd Llwyddiannus

Status C

Subject: Finance and statistics

Part of speech: Noun, Plural

Definition: Teitl cyllideb

Last Updated: 7 January 2008

English: Successful Futures

Welsh: Dyfodol Llwyddiannus

Status A

Subject: Education

Part of speech: Proper noun

Last Updated: 18 February 2015

English: Successful Futures: Independent Review of Curriculum and Assessment Arrangements in Wales

Welsh: Dyfodol Llwyddiannus: Adolygiad Annibynnol o’r Cwricwlwm a’r Trefniadau Asesu yng Nghymru

Status A

Subject: Education

Part of speech: Proper noun

Definition: Document title.

Last Updated: 16 February 2015

English: Successful Futures Programme Manager

Welsh: Rheolwr y Rhaglen Dyfodol Llwyddiannus

Status B

Subject: Welsh Government posts and departments

Part of speech: Noun, Masculine, Singular

Last Updated: 15 June 2015

English: successful participant

Welsh: cyfranogwr llwyddiannus

Status B

Subject: Finance and statistics

Part of speech: Noun, Masculine, Singular

Definition: Yng nghyd-destun y weithdrefn gaffael, deialog gystadleuol, y cyfranogwr yn y ddeialog honno sydd wedi ei rancio uchaf yn dilyn y gwerthusiad o'r tendrau terfynol.

Last Updated: 24 May 2023

English: successful succession

Welsh: olyniaeth lwyddiannus

Status C

Subject: Economic development

Part of speech: Noun, Feminine, Singular

Last Updated: 17 October 2012

English: succession

Welsh: olyniaeth

Status C

Subject: General

Part of speech: Noun, Feminine, Singular

Last Updated: 29 November 2005

English: succession fraud

Welsh: twyll olyniaeth

Status B

Subject: Housing

Part of speech: Noun, Masculine, Singular

Context: Type of housing fraud.

Last Updated: 24 May 2012

English: succession planning

Welsh: cynllunio ar gyfer olyniaeth

Status C

Subject: Personnel

Part of speech: Verb

Last Updated: 10 February 2005

English: succession rights

Welsh: hawliau olynu

Status A

Subject: Housing

Part of speech: Noun, Plural

Last Updated: 30 April 2013

English: succession to carers

Welsh: olynu gan ofalwyr

Status A

Subject: Housing

Part of speech: Verb

Context: of a tenancy

Last Updated: 30 April 2013

English: successor

Welsh: olynydd

Status A

Subject: Housing

Part of speech: Noun, Masculine, Singular

Plural: olynwyr

Definition: Person sy'n cymryd tenantiaeth pan fydd y tenant gwreiddiol yn marw.

Last Updated: 26 November 2019

English: successor in title

Welsh: olynydd yn y teitl

Status A

Subject: Law

Part of speech: Noun, Masculine, Singular

Plural: olynwyr yn y teitl

Definition: Unrhyw un sy'n cymryd perchnogaeth gyfreithiol ar eiddo wrth rywun arall.

Notes: Sylwer y bydd angen addasu'r term pan gaiff ei ddilyn gan ymadrodd enwol, ee "olynydd yn nheitl yr ymgeisydd"

Last Updated: 23 February 2026

English: successor landlord

Welsh: olynydd-landlord

Status B

Subject: Law

Part of speech: Noun, Masculine, Singular

Plural: olynydd-landlordiaid

Notes: Term o Orchymyn Tai (Rhoi Tenantiaethau yn lle Tenantiaethau a Derfynwyd) (Olynydd-landlordiaid) (Cymru) 2009

Last Updated: 2 December 2025

English: Success Profiles

Welsh: Proffil Llwyddiant

Status C

Subject: Personnel

Part of speech: Noun, Masculine, Singular

Plural: Proffiliau Llwyddiant

Context: Er hynny, mae Bwrdd Gallu a Thalent Llywodraeth Cymru wedi penderfynu, o ran egwyddor ac yn ddarostyngedig i ymgysylltu ac ymgynghori â'r Undebau Llafur, fabwysiadu Proffiliau Llwyddiant.

Last Updated: 29 November 2018

English: success rates

Welsh: cyfraddau llwyddo

Status C

Subject: Health

Part of speech: Noun, Plural

Last Updated: 5 December 2011

English: Success Through Your People

Welsh: Llwyddiant Drwy Eich Pobl

Status A

Subject: Tourism and leisure

Definition: The Human Resources Management Toolkit for the Tourism Industry

Last Updated: 12 December 2006

English: suckers

Welsh: crachgoed

Status C

Subject: Plants

Part of speech: Noun, Plural

Definition: New shoots.

Last Updated: 19 August 2010

English: suckled lamb

Welsh: oen sugno

Status C

Subject: Agriculture

Part of speech: Noun, Masculine, Singular

Context: Glastir (ACRES)

Last Updated: 17 November 2011

English: suckled sow

Welsh: hwch sydd wedi'i sugno

Status C

Subject: Agriculture

Part of speech: Noun, Feminine, Singular

Last Updated: 16 June 2014

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