TermCymru

Results are displayed in Welsh alphabetical order A-Y

English: draft LCO

Status A

Subject: Law

Part of speech: Noun, Masculine, Singular

Definition: gorchymyn cymhwysedd deddfwriaethol o dan Ddeddf Llywodraeth Cymru 2006 yr oedd Cynulliad Cenedlaethol Cymru a Senedd y Deyrnas Unedig yn ei ystyried cyn pleidleisio arno

Context: Ar ôl cyflwyno GCD drafft, dim ond i dderbyn neu wrthod y GCD hwnnw yn ei gyfanrwydd y gall y Cynulliad bleidleisio. Ni all ddiwygio'r GCD drafft mewn unrhyw ffordd.

Last updated: 16 November 2021

Welsh: GCM

English: SCA

Status C

Subject: Education

Part of speech: Verb

Definition: Student Community Action

Last updated: 13 February 2003

Welsh: GCRF

English: GCRF

Status B

Subject: Education

Part of speech: Noun, Feminine, Singular

Notes: Dyma'r acronym a ddefnyddir yn y ddwy iaith am y Global Challenges Research Fund / Y Gronfa Ymchwil i Heriau Byd-eang

Last updated: 9 August 2017

Welsh: GCW

English: IAG

Status C

Subject: Environment

Part of speech: Noun, Masculine, Singular

Definition: Implementation Advisory Group

Last updated: 27 May 2004

Welsh: GDC

English: ALG

Status A

Subject: Education

Part of speech: Noun, Masculine, Singular

Definition: Assembly Learning Grant

Context: Grant Dysgu'r Cynulliad

Last updated: 13 July 2006

Welsh: GDDP

English: CCLD

Status C

Subject: Social services

Part of speech: Neutral

Definition: Children’s Care, Learning and Development

Context: Gofal, Dysgu a Datblygiad Plant. Yng nghyd-destun: 1) Cymhwyster galwedigaethol 2) Safonau Galwedigaethol Cenedlaethol Gofal, Dysgu a Datblygiad Plant 3) Sector Gofal, Dysgu a Datblygiad Plant.

Last updated: 1 November 2010

Welsh: GDHI

English: GDHI

Status C

Subject: Economic development

Part of speech: Noun, Masculine, Singular

Definition: Gross Disposable Household Income

Last updated: 1 June 2005

Welsh: GDPR

English: GDPR

Status B

Subject: Europe

Part of speech: Noun, Masculine, Singular

Notes: Dyma'r acronym a ddefnyddir yn y ddwy iaith am General Data Protection Regulation / Y Rheoliad Cyffredinol ar Ddiogelu Data

Last updated: 23 March 2017

Welsh: GDPR y DU

English: UK GDPR

Status B

Subject: Law

Part of speech: Noun, Masculine, Singular

Notes: Enw tebygol ar GDPR yn dilyn Brexit.

Last updated: 15 May 2019

Welsh: gefeiliau

English: forceps

Status C

Subject: Health

Part of speech: Noun, Plural

Last updated: 17 July 2006

Welsh: gefeilliaid deusygotig

English: dizygotic twins

Status C

Subject: Health

Part of speech: Noun, Plural

Definition: Two offspring born of the same pregnancy and developed from two ova that were released from the ovary simultaneously and fertilized at the same time. They may be of the same or opposite sex, differ both physically and genetically, and have two separate and distinct placentas and membranes, both amnion and chorion.

Context: Gwelwyd cynnydd sylweddol yn y nifer o achosion o efeilliaid monosygotig (unwy/un ffunud) sy'n cydgordio i drawsnewid o'u cymharu â gefeilliaid deusygotig (deuwy).

Notes: Mae’r term fraternal twins / gefeilliaid deuwy yn gyfystyr.

Last updated: 9 June 2016

Welsh: gefel

English: forceps

Status C

Subject: Health

Part of speech: Noun, Feminine, Singular

Last updated: 13 March 2008

Welsh: gefell digidol

English: digital twin

Status B

Subject: ICT

Part of speech: Noun, Masculine, Singular

Plural: gefeilliaid digidol

Definition: Cynrychioliad rhithiol o endid neu system ffisegol yn y byd go iawn, sy'n gwbl annibynnol ac yn gallu dysgu gan yr endid neu system ffisegol gyfatebol. Gellir ei ddefnyddio i wella perfformiad y system ffisegol neu i rag-weld ac atal problemau cyn iddynt ddigwydd.

Notes: Mae'r term hwn yn rhan o gyfres o dri term cysylltiedig sy'n adlewyrchu lefelau gwahanol o gymhlethdod yn y systemau rhithiol: digital model (model digidol), digital shadow (cysgod digidol) a digital twin (gefell digidol).

Last updated: 27 March 2024

Welsh: gefryn

English: kid

Status C

Subject: Agriculture

Part of speech: Noun, Masculine, Singular

Definition: male kid

Last updated: 3 October 2003

Welsh: gefrynnod

English: kids

Status C

Subject: Agriculture

Part of speech: Noun, Plural

Definition: young goats

Last updated: 3 October 2003

Welsh: gefynnau

English: handcuffs

Status B

Subject: Justice and order

Part of speech: Noun, Plural

Last updated: 29 August 2012

Welsh: gefynnau euraid

English: golden handcuffs

Status C

Subject: Personnel

Part of speech: Noun, Plural

Last updated: 10 November 2004

Welsh: gefynnu

English: shackle

Status A

Subject: Agriculture

Part of speech: Verb

Last updated: 5 February 2013

Welsh: Geid

English: Guide

Status A

Subject: Tourism and leisure

Part of speech: Noun, Feminine, Singular

Plural: Geidiaid

Notes: Yng ngyd-destun mudiad y Girl Guides.

Last updated: 4 June 2018

Welsh: geifr

English: caprine

Status C

Subject: Animals

Part of speech: Noun, Plural

Last updated: 19 May 2004

Welsh: geifre

English: herd

Status C

Subject: Agriculture

Part of speech: Noun, Feminine, Singular

Definition: of goats

Last updated: 29 July 2003

Welsh: Geiger Bay

English: Geiger Bay

Status B

Subject: Environment

Part of speech: Proper noun

Notes: Ymgyrch yn erbyn y cynnig i adael gwastraff o orsaf ynni niwclear Hinkley Point C yn ardal Bastiroedd Caerdydd yn aber afon Hafren.

Last updated: 23 March 2021

Welsh: geirda

English: reference

Status A

Subject: Personnel

Part of speech: Noun, Masculine, Singular

Definition: a reference for a job

Context: Lluosog: geirdaon.

Last updated: 12 January 2004

Welsh: geirfa

English: glossary

Status C

Subject: General

Part of speech: Noun, Feminine, Singular

Last updated: 21 June 2010

Welsh: geirfa amlder uchel

English: high frequency vocabulary

Status B

Subject: Culture and the arts

Part of speech: Noun, Feminine, Singular

Plural: geirfâu amlder uchel

Definition: Geirfa sy'n digwydd yn aml iawn naill ai mewn iaith lafar neu mewn iaith ysgrifenedig (neu yn y ddwy iaith).

Notes: Term o faes ieithyddiaeth a ddefnyddir mewn deunyddiau sy’n gysylltiedig â CEFR, y Fframwaith Cyfeirio Cyffredin Ewropeaidd ar gyfer Ieithoedd.

Last updated: 2 October 2025

Welsh: geirfaol

English: lexical

Status B

Subject: Culture and the arts

Part of speech: Adjective

Definition: Yn ymwneud â holl eiriau (geirfa) iaith.

Notes: Term o faes ieithyddiaeth a ddefnyddir mewn deunyddiau sy’n gysylltiedig â CEFR, y Fframwaith Cyfeirio Cyffredin Ewropeaidd ar gyfer Ieithoedd.

Last updated: 2 October 2025

Welsh: geiriad

English: legend

Status B

Subject: Transport

Part of speech: Noun, Masculine, Singular

Plural: geiriadau

Definition: Y geiriau a’r llythrennau sy’n ymddangos ar arwydd ffordd, heb gynnwys symbolau a ddyluniwyd ac a all gynnwys llythrennau (ee P am ddarpariaeth barcio).

Last updated: 18 May 2023

Welsh: geiriad traddodiadol

English: traditional expression

Status B

Subject: Food

Part of speech: Noun, Masculine, Singular

Plural: geiriadau traddodiadol

Definition: Enw a ddefnyddir yn draddodiadol i gyfeirio’n benodol at y dull cynhyrchu neu at ansawdd, lliw neu fath o win.

Last updated: 5 November 2020

Welsh: geiriadur

English: dictionary

Status B

Subject: ICT

Part of speech: Noun, Masculine, Singular

Last updated: 19 July 2005

Welsh: Geiriadur Allweddeiriau

English: Keyword Dictionary

Status C

Subject: Education

Part of speech: Noun, Masculine, Singular

Last updated: 7 February 2008

Welsh: geiriadur data

English: data dictionary

Status B

Subject: ICT

Part of speech: Noun, Masculine, Singular

Last updated: 19 July 2005

Welsh: geiriadur newydd

English: new dictionary

Status B

Subject: ICT

Part of speech: Noun, Masculine, Singular

Last updated: 19 July 2005

Welsh: Geir-IAU

English: U-News

Status A

Subject: Education

Context: Title of competition for children and young people.

Last updated: 5 July 2010

Welsh: geiriau cloi

English: full-out words

Status A

Subject: Law

Part of speech: Noun, Plural

Definition: geiriau sy'n dod ar ôl nifer o baragraffau etc ac yn cloi darpariaeth ddeddfwriaethol.

Context: yn y geiriau cloi ar ddiwedd y diffiniad, ar ôl “those provisions of the Children Act 1989” mewnosoder “or, as the case may be, the Social Services and Well-being (Wales) Act 2014

Last updated: 16 November 2021

Welsh: geiriau dibwys

English: noise words

Status C

Subject: ICT

Part of speech: Noun, Plural

Definition: Geiriau sy'n cael eu hepgor wrth chwilio am frawddeg ar wefan.

Last updated: 14 June 2004

Welsh: geiriau gyda rhifau

English: words with numbers

Status B

Subject: ICT

Part of speech: Noun, Plural

Last updated: 19 July 2005

Welsh: Geiriau'n Galw: Rhifau'n Cyfri

English: Words Talk: Numbers Count

Status A

Subject: Education

Part of speech: Noun, Plural

Definition: basic skills strategy

Last updated: 30 March 2005

Welsh: GEL

English: GEL

Status B

Subject: ICT

Part of speech: Noun, Feminine, Singular

Notes: Dyma’r acronym a ddefnyddir yn y ddwy iaith am ‘Global Experience Language’ / ‘Iaith Profiad Cyflawn’. Gweler y cofnod am y term llawn am ddiffiniad.

Last updated: 24 January 2017

Welsh: gelatin

English: gelatine

Status A

Subject: Food

Part of speech: Noun, Masculine, Singular

Last updated: 29 July 2003

Welsh: gelatin moch

English: porcine gelatine

Status B

Subject: Health

Part of speech: Noun, Masculine, Singular

Notes: Yng nghyd-destun deunyddiau cyffredinol am frechlynnau. Yn dechnegol mae “porcine” yn cyfeirio at deulu’r moch yn ehangach (hynny yw, gan gynnwys baeddod gwyllt ac ati), ond daw’r gelatin ar gyfer brechlynnau ffliw ac ati o foch cyffredin ac felly mae’n addas defnyddio “gelatin moch” yn y cyd-destun hwn.

Last updated: 3 March 2016

Welsh: gelding

English: gelding

Status C

Subject: Animals

Part of speech: Noun, Masculine, Singular

Context: Defnyddir "adfarch" hefyd.

Last updated: 20 August 2008

Welsh: Gele a Llanddulas

English: Gele and Llanddulas

Status A

Subject: Place-names

Part of speech: Proper noun

Notes: Ward etholiadol ym Mwrdeistref Sirol Conwy. Dyma'r enwau a ragnodwyd yn Gymraeg a Saesneg ar gyfer y ward yng Ngorchymyn Bwrdeistref Sirol Conwy (Trefniadau Etholiadol) 2021.

Last updated: 17 August 2022

Welsh: gellesgen

English: yellow iris

Status A

Subject: Plants

Part of speech: Noun, Feminine, Singular

Plural: gellesg

Definition: iris pseudacorus

Last updated: 21 June 2022

Welsh: gellesgen felen

English: yellow flag

Status C

Subject: Plants

Part of speech: Noun, Feminine, Singular

Last updated: 14 May 2008

Welsh: Gelli-deg

English: Gellideg

Status A

Subject: Place-names

Part of speech: Proper noun

Definition: Merthyr Tudful

Last updated: 14 August 2003

Welsh: gellyg

English: pears

Status C

Subject: Food

Part of speech: Noun, Plural

Last updated: 1 September 2004

Welsh: gellyg y ddaear

English: Jerusalem artichokes

Status C

Subject: Environment

Part of speech: Noun, Plural

Last updated: 29 July 2003

Welsh: gelyniaeth ddifaddeuant

English: implacable hostility

Status C

Subject: Health

Part of speech: Noun, Feminine, Singular

Context: CAFCASS Cymru practitioners, as professionally qualified social workers, are trained to understand and recognise the potential for implacable hostility by a party in divorce or separation cases where there is high conflict between parents.

Last updated: 13 April 2017

Welsh: gelyniaeth luosog

English: multiple hostility

Status A

Subject: Justice and order

Part of speech: Noun, Feminine, Singular

Context: Hate crimes.

Last updated: 9 June 2014

Welsh: Gemau am Oes

English: Games4Life

Status A

Subject: Tourism and leisure

Part of speech: Noun, Plural

Last updated: 25 October 2012

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