TermCymru

Results are displayed in Welsh alphabetical order A-Y

English: cylinder glass

Status C

Subject: Estates and Cadw

Part of speech: Noun, Masculine, Singular

Definition: Sheet formed by blowing an elongated cylinder from molten glass, which is then cut along its length and laid flat, to cool, before being subdivided into smaller sheets.

Context: Ffynhonnell: Taflen wybodaeth gyhoeddus Cyngor Gwynedd.

Last updated: 23 April 2015

Welsh: gwydr sy'n adlewyrchu'r gwres

English: heat-reflective glass

Status C

Subject: Environment

Part of speech: Noun, Masculine, Singular

Definition: Lets heat from the sun into the house, but stops heat from inside escaping.

Last updated: 26 January 2009

Welsh: gwyfyn sidan conwydd Siberia

English: Siberian coniferous silk moth

Status C

Subject: Law

Part of speech: Noun, Masculine, Singular

Last updated: 22 September 2009

Welsh: gwyfyn y creulys

English: cinnabar

Status A

Subject: Environment

Part of speech: Noun, Masculine, Singular

Definition: type of butterfly

Last updated: 28 September 2005

Welsh: Gwyfyn Ymdeithiwr y Derw

English: Oak Processionary Moth

Status B

Subject: Animals

Part of speech: Noun, Masculine, Singular

Definition: Thaumetopoea processionea

Last updated: 23 March 2017

Welsh: gwyfyn ymdeithiwr y pinwydd

English: pine processionary moth

Status A

Subject: Animals

Part of speech: Noun, Masculine, Singular

Plural: gwyfynnod ymdeithwyr y pinwydd

Definition: Thaumetopoea pityocampa

Last updated: 27 October 2022

Welsh: gwygbys

English: chickpeas

Status B

Subject: Plants

Part of speech: Noun, Plural

Definition: Dyma’r enw botanegol swyddogol - dylid ei ddefnyddio wrth gyfeirio at y planhigyn yn ei gynefin.

Last updated: 22 September 2004

Welsh: gwylan benddu

English: black-headed gull

Status C

Subject: Birds

Part of speech: Noun, Feminine, Singular

Last updated: 4 August 2004

Welsh: gwylan gefnddu

English: black-backed gull

Status A

Subject: Birds

Part of speech: Noun, Feminine, Singular

Last updated: 4 June 2004

Welsh: gwylan gefnddu fwyaf

English: greater black-backed gull

Status C

Subject: Environment

Part of speech: Noun, Feminine, Singular

Last updated: 4 August 2004

Welsh: gwylan gefnddu fwyaf

English: great black-backed gull

Status C

Subject: Birds

Part of speech: Noun, Feminine, Singular

Plural: gwylanod cefnddu mwyaf

Last updated: 5 February 2025

Welsh: gwylan gefnddu leiaf

English: lesser black-backed gull

Status C

Subject: Environment

Part of speech: Noun, Feminine, Singular

Last updated: 4 August 2004

Welsh: gwylan goesddu

English: kittiwake

Status C

Subject: Birds

Part of speech: Noun, Feminine, Singular

Last updated: 4 August 2004

Welsh: gwylanod cefnddu lleiaf

English: lesser black-backed gulls

Status C

Subject: Birds

Part of speech: Noun, Plural

Last updated: 20 April 2011

Welsh: gwylan y penwaig

English: herring gull

Status A

Subject: Birds

Part of speech: Noun, Feminine, Singular

Last updated: 4 June 2004

Welsh: Gwylfan

English: Seawatch Centre

Status C

Subject: Place-names

Part of speech: Proper noun

Definition: Moelfre, Ynys Môn

Last updated: 2 August 2006

Welsh: gwyliadwriaeth

English: surveillance

Status C

Subject: Health

Part of speech: Noun, Feminine, Singular

Definition: cadw gwyliadwriaeth

Last updated: 27 July 2006

Welsh: Gwyliadwriaeth Amser Real Hunanladdiad Tybiedig

English: Real Time Suspected Suicide Surveillance

Status B

Subject: Health

Part of speech: Noun, Feminine, Singular

Context: Yn yr un flwyddyn hefyd, lansiwyd Gwyliadwriaeth Amser Real Hunanladdiad Tybiedig (RTSSS) yng Nghymru, a gafodd ei datblygu mewn partneriaeth ag Iechyd Cyhoeddus Cymru, y pedwar heddlu yng Nghymru a Gweithrediaeth GIG Cymru. Mae’r system yn casglu data yn uniongyrchol gan heddluoedd ynghylch marwolaethau sydyn neu ddiesboniad ble mae amheuaeth o hunanladdiad.

Notes: Defnyddir yr acronym RTSSS yn Saesneg ac yn Gymraeg.

Last updated: 1 March 2024

Welsh: gwyliadwriaeth feirolegol

English: virological surveillance

Status B

Subject: Health

Part of speech: Noun, Feminine, Singular

Context: Mae Llywodraeth Cymru wedi darparu cyllid parhaus i Iechyd Cyhoeddus Cymru i wella gwyliadwriaeth feirolegol ar gyfer salwch anadlol acíwt gan gynnwys rhoi gwyliadwriaeth sentinel ar waith mewn fferyllfeydd i gefnogi data a mewnwelediadau mwy dibynadwy ym maes gwyliadwriaeth.

Last updated: 13 February 2025

Welsh: gwyliadwriaeth ffarmacolegol

English: pharmacovigilance

Status C

Subject: Health

Part of speech: Noun, Feminine, Singular

Definition: Pharmacovigilance is the science and activities relating to the detection, assessment, understanding and prevention of adverse effects or any other medicine-related problem.

Last updated: 18 October 2018

Welsh: gwyliadwrus ond diymateb

English: frozen watchfulness

Status C

Subject: Social services

Part of speech: Neutral

Definition: The child's eyes have a frozen look but follow your every move.

Context: Child abuse

Last updated: 21 July 2011

Welsh: gwyliau blynyddol

English: AL

Status B

Subject: Personnel

Part of speech: Noun, Plural

Definition: annual leave

Last updated: 13 July 2006

Welsh: gwyliau blynyddol

English: annual leave

Status B

Subject: Personnel

Part of speech: Noun, Plural

Definition: AL

Last updated: 15 February 2005

Welsh: gwyliau braint

English: privilege leave

Status C

Subject: Personnel

Part of speech: Noun, Plural

Last updated: 28 September 2005

Welsh: gwyliau byr

English: short break

Status C

Subject: Tourism and leisure

Part of speech: Noun, Plural

Last updated: 12 December 2006

Welsh: gwyliau gartref

English: staycation

Status A

Subject: Tourism and leisure

Part of speech: Noun, Plural

Last updated: 10 June 2014

Welsh: Gwyliau Go Iawn yng Nghymru

English: Proper Holidays in Wales

Status C

Subject: Tourism and leisure

Part of speech: Noun, Plural

Definition: Gwefan Croeso Cymru.

Last updated: 21 July 2011

Welsh: Gwyliau Golff Calon Cymru

English: Heart of Wales Golf Breaks

Status C

Subject: Tourism and leisure

Part of speech: Noun, Plural

Last updated: 16 July 2007

Welsh: gwyliau gweithgareddau

English: activity holiday

Status B

Subject: Tourism and leisure

Part of speech: Noun, Masculine, Singular

Definition: Unigol wrth sôn am un gweithgaredd penodol; fel arall defnyddio’r lluosog.

Last updated: 29 March 2006

Welsh: gwyliedydd

English: bystander

Status B

Subject: Education

Part of speech: Noun, Masculine, Singular

Plural: gwyliedyddion

Definition: Yng nghyd-destun bwlio, person sy'n bresennol mewn digwyddiad neu achos o fwlio, ond nad yw'n cymryd rhan. Gall y digwyddiad neu'r achos fod ar-lein neu oddi-ar-lein.

Last updated: 2 July 2025

Welsh: gwylio

English: carry out a watching brief

Status C

Subject: Law

Part of speech: Verb

Definition: non-legal

Last updated: 17 January 2005

Welsh: gwylio

English: deploy a watching brief

Status C

Subject: Law

Part of speech: Verb

Definition: non-legal

Last updated: 17 January 2005

Welsh: Gwylio ac Achub Moch Daear Dyfed

English: Badger Watch and Rescue Dyfed

Status A

Subject: Agriculture

Context: http://www.badger-watch.co.uk/

Last updated: 15 February 2010

Welsh: Gwylio a Gwrando

English: Watch and Listen

Status A

Subject: Politics

Part of speech: Proper noun

Definition: Part of the National Assembly for Wales's website.

Last updated: 22 January 2013

Welsh: gwylio-am-ddim

English: free-to-view

Status C

Subject: ICT

Part of speech: Adjective

Definition: broadcasting

Last updated: 26 July 2004

Welsh: Gwyliwch y germau! Canllawiau ynghylch Rheoli Haint ar gyfer Meithrinfeydd, Grwpiau Chwarae a Sefydliadau Gofal Plant eraill

English: Mind the Germs! Infection Control Guidance for Nurseries, Playgroups and other Childcare Settings

Status A

Subject: Health

Part of speech: Verb

Definition: Llyfryn sydd wedi cael ei gynhyrchu gan y Llywodraeth mewn ymateb i E.coli.

Last updated: 24 September 2007

Welsh: gwyllt

English: wild

Status C

Subject: Agriculture

Part of speech: Adjective

Last updated: 15 July 2008

Welsh: "gwyllt"

English: wild-type

Status B

Subject: Health

Part of speech: Adjective

Definition: Yng nghyd-destun feirysau, y straen neu straeniau gwreiddiol nad ydynt wedi mwtanu yn amrywiolynnau sy'n peri pryder.

Notes: Argymehellir defnyddio'r dyfynodau o amgylch y term Cymraeg er mwyn cyfleu'r elfen "type" ond gellid hepgor hwy hefyd os yw hynny'n well yng nghyd-destun y frawddeg.

Last updated: 4 February 2021

Welsh: gwylnos

English: wake

Status B

Subject: Religion

Part of speech: Noun, Feminine, Singular

Plural: gwylnosau

Notes: Yng nghyd-destun canllawiau COVID-19 a lle crywyllir ‘wake’ fel enghraifft o ddigwyddiad sydd o dan gyfyngiadau, gallai fod yn addas ychwanegu ‘te angladd’ yn y testun Cymraeg, gan y bydd hynny’n debygol o fod yn fwy cyfarwydd i gynulleidfa Gymraeg.

Last updated: 17 December 2020

Welsh: gwylnos filwrol

English: military vigil

Status C

Subject: Culture and the arts

Part of speech: Noun, Feminine, Singular

Last updated: 15 September 2016

Welsh: gwylog

English: guillemot

Status A

Subject: Environment

Part of speech: Noun, Feminine, Singular

Last updated: 7 October 2002

Welsh: gwylogod

English: guillemots

Status A

Subject: Environment

Part of speech: Noun, Plural

Last updated: 7 October 2002

Welsh: gwylwyr

English: onlookers

Status C

Subject: Education

Part of speech: Noun, Plural

Definition: in the context of bullying

Last updated: 27 September 2006

Welsh: gwymon calchog

English: calcified seaweed

Status C

Subject: Environment

Part of speech: Noun, Masculine, Singular

Last updated: 24 February 2005

Welsh: gwyn

English: white

Status A

Subject: General

Part of speech: Adjective

Notes: Daw'r term hwn o gasgliad y Grŵp Gorchwyl a Gorffen ar Derminoleg ym maes Cydraddoldeb o ran Hil ac Ethnigrwydd. Diffiniad a nodiadau defnydd y Grŵp a gofnodir gyda'r cofnod hwn: "Hyd y bo modd, defnyddiwch briflythyren gyda’r gair ‘Du’ wrth gyfeirio at bobl, a dim priflythyren gyda ‘gwyn’ mewn cyd-destunau tebyg. Yr unig eithriad yw lle mae angen cysondeb rhwng dwy ddogfen yn y ddwy iaith a bod yn rhaid i’r cyfieithiad ddilyn arddull y gwreiddiol. PEIDIWCH â defnyddio ansoddeiriau lliw yn enwol (h.y. yn lle enwau) wrth gyfeirio at grwpiau o bobl e.e. ‘y Duon’ / ‘y gwynion’. PEIDIWCH â defnyddio ffurfiau lluosog yr ansoddeiriau ‘du’ a ‘gwyn’ wrth gyfeirio at bobl (h.y. ‘pobl Ddu’ nid ‘pobl Dduon’, a ‘pobl wyn’ nid ‘pobl wynion’). Mewn rhai ymadroddion, e.e. ‘bywydau Duon’ gallai ymddangos fel petai ‘Duon’ yn enwol yn hytrach nag yn ansoddeiriol a gwell osgoi hynny, fel y nodir uchod."

Last updated: 18 April 2023

Welsh: Gwyn

English: White

Status A

Subject: Personnel

Part of speech: Adjective

Definition: ethnic group used in 2001 Census

Last updated: 26 April 2005

Welsh: Gwyn ac Asiaidd

English: White and Asian

Status C

Subject: Personnel

Part of speech: Adjective

Last updated: 7 June 2007

Welsh: Gwyn a Du Affricanaidd

English: White and Black African

Status A

Subject: Personnel

Part of speech: Adjective

Definition: ethnic group used in 2001 Census

Last updated: 26 April 2005

Welsh: Gwyn a Du Caribïaidd

English: White and Black Caribbean

Status A

Subject: Personnel

Part of speech: Adjective

Definition: ethnic group used in 2001 Census

Last updated: 26 April 2005

Welsh: Gwyn Arall

English: Other White

Status A

Subject: Personnel

Part of speech: Adjective

Definition: ethnic group used in 2001 Census

Last updated: 26 April 2005

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