TermCymru

Results are displayed in alphabetical order.

Welsh: mercwri nwyol adweithiol

Status B

Subject: Environment

Part of speech: Noun, Masculine, Singular

Context: Yn y rheoliad hwn, ystyr “mercwri nwyol llwyr” (“total gaseous mercury”) yw anwedd mercwri elfennaidd (Hg0) a mercwri nwyol adweithiol, sef rhywogaethau mercwri sy'n doddadwy mewn dŵr gyda phwysedd anweddol digon uchel iddynt fodoli yn y cyfnod nwyol.

Last Updated: 16 September 2024

English: ReAct Monitoring Officer

Welsh: Swyddog Monitro ReAct

Status C

Subject: Welsh Government posts and departments

Part of speech: Noun, Masculine, Singular

Last Updated: 19 April 2006

English: reactor

Welsh: adweithydd

Status B

Subject: Agriculture

Part of speech: Noun, Masculine, Singular

Plural: adweithyddion

Definition: Anifail sy’n cael adwaith positif, ar sail dehongliad safonol neu ddehongliad llym, i brawf croen TB.

Notes: Gellid ystyried ychwanegu’r diffiniad fel eglurhad mewn cromfachau pan ddefnyddir y term am y tro cyntaf mewn dogfen. Mewn cyd-destunau llai technegol gellid ystyried defnyddio aralleiriad sy’n seiliedig ar y diffiniad, yn hytrach na’r term ei hun.

Last Updated: 22 October 2025

English: ReAct Processing Officers

Welsh: Swyddogion Prosesu ReAct

Status C

Subject: Welsh Government posts and departments

Part of speech: Noun, Plural

Last Updated: 11 November 2011

English: ReAct Programme Manager

Welsh: Rheolwr y Rhaglen ReAct

Status C

Subject: Welsh Government posts and departments

Part of speech: Noun, Masculine, Singular

Last Updated: 19 April 2006

English: Read a Million Words

Welsh: Darllenwch Filiwn o Eiriau

Status A

Subject: Education

Part of speech: Verb

Definition: Cynllun darllen.

Last Updated: 23 November 2007

English: Read a Million Words in Wales

Welsh: Darllenwch Filiwn o Eiriau yng Nghymru

Status A

Subject: Education

Definition: Ymgyrch Sgiliau Sylfaenol.

Last Updated: 14 May 2008

English: Read a Million Words Together in Wales

Welsh: Darllenwch Filiwn o Eiriau Gyda'ch Gilydd yng Nghymru

Status A

Subject: Education

Part of speech: Verb

Definition: Ymgyrch Sgiliau Sylfaenol Cymru

Last Updated: 24 July 2008

English: Read and Write Together

Welsh: Darllen ac Ysgrifennu gyda'ch Gilydd

Status A

Subject: Education

Part of speech: Verb

Definition: dogfen yr Asiantaeth Sgiliau Sylfaenol

Last Updated: 9 June 2003

English: readathon

Welsh: darllenathon

Status C

Subject: Education

Part of speech: Noun, Masculine, Singular

Last Updated: 27 March 2008

English: Read code

Welsh: cod Read

Status B

Subject: Health

Part of speech: Noun, Masculine, Singular

Plural: codau Read

Definition: Cyferinod pedwar nod sy'n rhan o system ar gyfer categoreiddio cyflyrau iechyd, ac a ddefnyddir yn y Gwasanaeth Iechyd.

Notes: Daw'r elfen Read o enw'r meddyg a ddatblygodd y system hon gyntaf, Dr James Read.

Last Updated: 17 September 2020

English: read down

Welsh: darllen yn gyfyng

Status C

Subject: Law

Part of speech: Verb

Definition: Clause 151 authorises a court to read down Assembly legislation, so far as that is possible, in order to be able to conclude that a provision in issue is intra vires.

Last Updated: 19 December 2005

English: reader

Welsh: darllenydd

Status C

Subject: General

Part of speech: Noun, Masculine, Singular

Definition: A person who, for the purposes of research or study and with the permission of the Deposit Library is on library premises controlled by it.

Last Updated: 25 January 2011

English: Reading and Recording Centre

Welsh: Canolfan Darllen a Chofnodi

Status C

Subject: Agriculture

Part of speech: Noun, Feminine, Singular

Last Updated: 26 January 2010

English: Reading and Writing Initiative

Welsh: y Fenter Darllen ac Ysgrifennu

Status C

Subject: Education

Part of speech: Noun, Feminine, Singular

Context: RWI

Last Updated: 28 September 2011

English: Reading Better

Welsh: Darllen yn Well

Status A

Subject: Education

Part of speech: Neutral

Context: Event held at Millennium Stadium, July 2009.

Last Updated: 2 June 2009

English: Reading Communities

Welsh: Cymunedau'n Darllen

Status A

Subject: Culture and the arts

Part of speech: Proper noun

Definition: Welsh Books Council project.

Last Updated: 18 March 2014

English: reading for orientation

Welsh: darllen trwy sganio

Status B

Subject: Culture and the arts

Part of speech: Verb

Definition: Bwrw golwg cyflym dros destun i chwilio am wybodaeth benodol.

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

English: Reading Personalised Assessment

Welsh: Asesiad Personol Darllen

Status B

Subject: Education

Part of speech: Noun, Masculine, Singular

Plural: Asesiadau Personol Darllen

Notes: O dan y Cwricwlwm i Gymru, caiff asesiadau personol darllen a rhifedd eu gwneud ar-lein gan ddisgyblion ym mlynyddoedd 2 i 9 mewn ysgolion a gynhelir yng Nghymru. Maent yn orfodol, ac yn rhoi adborth fel y gall dysgwyr, eu hathrawon a’u rhieni/gofalwyr ddeall y cynnydd y maen nhw’n ei wneud ar eu taith ddysgu, er mwyn cynllunio’r camau nesaf. Y berfenw ‘do’/‘gwneud’ (yn hytrach na ‘sit’/‘sefyll’ neu ‘take’/‘cymryd’) sy’n gymeradwy wrth sôn am ymgymryd ag asesiadau personol.

Last Updated: 23 September 2024

English: Reading Power

Welsh: Grym Darllen

Status C

Subject: Education

Part of speech: Noun, Masculine, Singular

Context: Cardiff Council initiative.

Last Updated: 11 January 2013

English: Reading Room

Welsh: Ystafell Ddarllen

Status C

Subject: General

Part of speech: Noun, Feminine, Singular

Definition: Premises controlled by a Legal Deposit Library from which a reader may view relevant material.

Last Updated: 25 January 2011

English: Reading Stars

Welsh: Sêr Darllen

Status A

Subject: Education

Part of speech: Proper noun, Plural

Definition: Premier League Reading Stars

Context: Teitl cwrteisi

Last Updated: 9 June 2014

English: Reading takes you places

Welsh: Darllen sy'n dechrau'r daith

Status C

Subject: Education

Definition: Teitl hysbyseb sy'n rhan o ymgyrch 'Rho amser i ddarllen'.

Last Updated: 2 April 2012

English: Read me now

Welsh: Darllenwch Hwn Nawr

Status B

Subject: Education

Part of speech: Verb

Last Updated: 22 May 2003

English: Read On. Get On.

Welsh: Darllena. Datblyga.

Status A

Subject: Education

Part of speech: Verb

Context: Mynnwch gip ar Darllena. Datblyga. - cyfres o 'Storïau Sbardun' i helpu eich plentyn i ddatblygu'r sgiliau iaith sydd eu hangen arno i ddod yn ddarllenwr da yn y dyfodol.

Notes: Ymgyrch gan Achub y Plant.

Last Updated: 21 March 2016

English: Read with Me

Welsh: Darllena gyda Fi

Status A

Subject: Education

Definition: bilingual book published by the Basic Skills Agency

Last Updated: 13 March 2003

English: Ready for Work Wales

Welsh: Cymru: Barod am Waith

Status C

Subject: Economic development

Part of speech: Proper noun

Last Updated: 6 September 2011

English: ready meal

Welsh: pryd parod

Status A

Subject: Food

Part of speech: Noun, Masculine, Singular

Plural: prydau parod

Definition: Pryd cyflawn sydd wedi ei goginio ac sydd angen ei ailgynhesu cyn ei fwyta

Last Updated: 4 April 2019

English: ready meals

Welsh: prydau parod

Status B

Subject: Food

Part of speech: Noun, Plural

Last Updated: 12 September 2007

English: ready-mix

Welsh: cymysgedd parod

Status C

Subject: Economic development

Part of speech: Noun, Masculine, Singular

Definition: cement

Last Updated: 2 February 2009

English: ready reckoner

Welsh: canllaw cyflym

Status B

Subject: Finance and statistics

Part of speech: Noun, Masculine, Singular

Last Updated: 20 October 2011

English: Ready, Steady, Go

Welsh: Un dau tri, i ffwrdd â ni

Status C

Subject: Health

Part of speech: Neutral

Context: Yng nghyd-destun y cynllun Newid am Oes.

Last Updated: 29 September 2011

English: ready-to-eat food

Welsh: bwyd parod i'w fwyta

Status A

Subject: Food

Part of speech: Noun, Masculine, Singular

Plural: bwydydd parod i'w bwyta

Definition: Bwyd nad oes angen ei goginio na'i ailgynhesu cyn ei fwyta.

Last Updated: 4 April 2019

English: ready to feed

Welsh: yn barod i'w yfed

Status C

Subject: Health

Part of speech: Adjective

Definition: ee cartonau llaeth powdr parod i fabanod

Last Updated: 22 April 2009

English: reagent

Welsh: adweithredydd

Status A

Subject: Environment

Part of speech: Noun, Masculine, Singular

Plural: adweithredyddion

Definition: A chemical agent for use in chemical reactions.

Last Updated: 13 July 2020

English: real ale

Welsh: cwrw iawn

Status C

Subject: Food

Part of speech: Noun, Masculine, Singular

Last Updated: 12 June 2006

English: real estate

Welsh: eiddo tirol

Status A

Subject: Agriculture

Part of speech: Noun, Masculine, Singular

Last Updated: 30 May 2007

English: Real Food from Real People

Welsh: Bwyd Blasus gan Bobl Go Iawn

Status A

Subject: Food

Part of speech: Noun, Masculine, Singular

Context: Enw ymgyrch gan gwmni PR ar ran Llywodraeth y Cynulliad, lansiwyd yn y Ffair Aeaf 09.

Last Updated: 4 August 2010

English: realign

Welsh: ailalinio

Status A

Subject: Transport

Part of speech: Verb

Definition: Gwella (ffordd, etc) drwy newid ei chyfeiriad yn llorweddol neu'n fertigol

Context: adleoli ac ailalinio’r bont droed newydd a’r rampiau dros gefnffordd yr A465 yn Blackrock

Last Updated: 14 September 2021

English: realign

Welsh: ailalinio

Status B

Subject: Transport

Part of speech: Verb

Definition: Ailddylunio'r llinell y bydd ffordd yn ei dilyn ar hyd y ddaear.

Last Updated: 20 February 2020

English: realignment

Welsh: adlinio

Status C

Subject: Planning

Part of speech: Verb

Last Updated: 6 May 2005

English: realign stone gutters

Welsh: ailosod y cafnau carreg

Status C

Subject: Estates and Cadw

Part of speech: Verb

Last Updated: 5 December 2011

English: real increase

Welsh: cynnydd real

Status A

Subject: Finance and statistics

Part of speech: Noun, Masculine, Singular

Notes: Term o faes cyfrifyddu.

Last Updated: 4 December 2018

English: Realising Our Vision

Welsh: Gwireddu Ein Gweledigaeth

Status A

Subject: Local government

Part of speech: Verb

Definition: Better Homes for People in Wales

Last Updated: 2 July 2002

English: Realising the Potential

Welsh: Gwireddu'r Potensial

Status A

Subject: Health

Part of speech: Verb

Definition: A strategic framework for nursing, midwifery and health visiting in Wales. Published 1999

Last Updated: 27 June 2002

English: Realising the potential of pre-application discussions

Welsh: Gwireddu potensial trafodaethau cyn ymgeisio

Status A

Subject: Planning

Part of speech: Proper noun

Context: Planning guidance

Last Updated: 12 July 2012

English: Realising the Promises

Welsh: Gwireddu'r Addewidion

Status C

Subject: Housing

Part of speech: Verb

Definition: dogfen ymgynghorol

Last Updated: 24 September 2002

English: real living wage

Welsh: cyflog byw gwirioneddol

Status A

Subject: Economic development

Part of speech: Noun, Masculine, Singular

Definition: Cyfradd dâl wirfoddol a argymhellir gan y Living Wage Foundation, sy'n uwch na'r cyflog byw cenedlaethol ac sy'n seiliedig ar gost basged o nwyddau a gwasanaethau beunyddiol.

Last Updated: 26 September 2019

English: Real Living Wage accredited employer

Welsh: cyflogwr achrededig Cyflog Byw Gwirioneddol

Status C

Subject: Finance and statistics

Part of speech: Noun, Masculine, Singular

Plural: cyflogwyr achrededig Cyflog Byw Gwirioneddol

Last Updated: 2 March 2023

English: Really Simple Syndication

Welsh: Syndicetiad Syml Iawn

Status C

Subject: ICT

Part of speech: Noun, Masculine, Singular

Definition: RSS. ‘Really Simple Syndication’. It allows information to be sent to a user instead of the user having to search for the information.

Last Updated: 26 March 2007

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