TermCymru

Results are displayed in alphabetical order.

English: double time

Welsh: tâl dwbl

Status B

Subject: Personnel

Part of speech: Noun, Masculine, Singular

Last Updated: 21 January 2003

English: double tripping

Welsh: dwy daith yn un

Status C

Subject: Transport

Part of speech: Noun, Feminine, Singular

Definition: Lle bo'r un bws a'r un gyrrwr yn cludo disgyblion o ddwy ysgol wahanol gyda'i gilydd.

Last Updated: 8 December 2010

English: double underline

Welsh: tanlinellu dwbl

Status B

Subject: ICT

Part of speech: Verb

Last Updated: 19 July 2005

English: double wave

Welsh: ton ddwbl

Status B

Subject: ICT

Part of speech: Noun, Feminine, Singular

Last Updated: 19 July 2005

English: doubling

Welsh: dyblu

Status A

Subject: Transport

Part of speech: Verb

Context: The process of expanding a single track to double track is called duplication or doubling, unless the expansion is to restore what was previously double track, in which case it is called redoubling.

Last Updated: 2 February 2015

English: doubling time

Welsh: amser dyblu

Status B

Subject: Health

Part of speech: Noun, Masculine, Singular

Definition: Y cyfnod o amser a gymer i nifer heintiadau mewn poblogaeth ddyblu.

Last Updated: 15 May 2020

English: doubling time reaction

Welsh: adwaith amser dyblu

Status B

Subject: Health

Part of speech: Noun, Masculine, Singular

Plural: adweithiau amser dyblu

Last Updated: 22 July 2020

English: douch

Welsh: enffrydiwr

Status B

Subject: Health

Part of speech: Noun, Masculine, Singular

Plural: enffrydwyr

Last Updated: 6 November 2019

English: doughnut

Welsh: toesen

Status C

Subject: Food

Part of speech: Noun, Feminine, Singular

Plural: toesenni

Last Updated: 7 January 2025

English: Douglas fir

Welsh: ffynidwydden Douglas

Status A

Subject: Environment

Part of speech: Noun, Feminine, Singular

Definition: Pseudotsuga Menziesii

Last Updated: 19 May 2005

English: doula

Welsh: dŵla

Status B

Subject: Health

Part of speech: Noun, Masculine, Singular

Plural: dŵlas

Definition: Unigolyn hyfforddedig, nad yw'n weithiwr iechyd proffesiynol, sy'n gallu helpu rhywun drwy brofiad iechyd anodd. Maent yn fwyaf adnabyddus am eu gwaith yn cynorthwyo mamau beichiog drwy’r enedigaeth, gan gynnwys pan fo’n hysbys bod y baban wedi marw yn y groth.

Last Updated: 8 October 2020

English: Dourine

Welsh: Dwrin

Status C

Subject: Agriculture

Part of speech: Noun, Masculine, Singular

Last Updated: 5 October 2006

English: dovecot

Welsh: colomendy

Status C

Subject: Estates and Cadw

Part of speech: Noun, Masculine, Singular

Last Updated: 19 December 2003

English: Dover sole

Welsh: lleden chwithig

Status A

Subject: Animals

Part of speech: Noun, Feminine, Singular

Definition: fish

Context: Solea solea. Also known as "common sole".

Last Updated: 8 June 2011

English: Dovey Junction

Welsh: Cyffordd Dyfi

Status A

Subject: Transport

Part of speech: Proper noun

Last Updated: 31 August 2010

English: Dowlais and Pant

Welsh: Dowlais a Phant

Status A

Subject: Place-names

Part of speech: Proper noun

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

Last Updated: 17 August 2022

English: Dowlais Top

Welsh: Dowlais Top

Status B

Subject: Place-names

Part of speech: Proper noun

Definition: Merthyr Tudful

Last Updated: 14 August 2003

English: down

Welsh: i lawr

Status B

Subject: ICT

Part of speech: Adverb

Last Updated: 19 July 2005

English: down

Welsh: twyndir

Status A

Subject: Environment

Part of speech: Noun, Masculine, Singular

Context: Such as the South Downs.

Last Updated: 27 February 2014

English: down arrow

Welsh: saeth i lawr

Status B

Subject: ICT

Part of speech: Noun, Feminine, Singular

Last Updated: 19 July 2005

English: Down Cattle Syndrome

Welsh: Clefyd Gorwedd

Status C

Subject: Agriculture

Part of speech: Noun, Masculine, Singular

Definition: Clefyd ar wartheg.

Last Updated: 30 July 2003

English: downer animal

Welsh: anifail gorweddiog

Status C

Subject: Agriculture

Part of speech: Noun, Masculine, Singular

Last Updated: 20 January 2010

English: downers

Welsh: tawelyddion

Status B

Subject: Justice and order

Part of speech: Noun, Plural

Last Updated: 29 August 2012

English: download

Welsh: lawrlwytho

Status C

Subject: ICT

Part of speech: Verb

Definition: in IT - to download

Last Updated: 23 December 2003

English: downloading

Welsh: lawrlwytho

Status C

Subject: ICT

Part of speech: Verb

Definition: The receiving of or retrieval of that data. Examples of remote systems include web, FTP, email or other servers.

Last Updated: 25 January 2011

English: downloads

Welsh: lawrlwythiadau

Status C

Subject: ICT

Part of speech: Noun, Plural

Definition: in IT

Last Updated: 23 December 2003

English: downpipes

Welsh: pibellau dŵr

Status C

Subject: Housing

Part of speech: Noun, Plural

Last Updated: 11 July 2008

English: downshirting

Welsh: lawrsbecian

Status A

Subject: Justice and order

Part of speech: Verb

Definition: Arfer o dynnu ffotograff neu fideo o dan grys neu flows menyw heb ganiatâd, at ddibenion rhywiol neu faleisus.

Notes: Safonwyd y term hwn ar sail y canllawiau ar drosi termau slangaidd Saesneg. Gweler yr erthygl yn yr Arddulliadur. Gweler hefyd y term upskirting / uwchsbecian.

Last Updated: 7 May 2025

English: Downs Syndrome

Welsh: Syndrom Down

Status C

Subject: Health

Part of speech: Noun, Masculine, Singular

Definition: A congenital disorder in which a person is born with three copies of chromosome 21.

Last Updated: 9 June 2006

English: Down's Syndrome Association

Welsh: Cymdeithas Syndrom Down

Status C

Subject: Health

Part of speech: Noun, Feminine, Singular

Definition: "Anabledd ac iaith", Delyth Prys

Last Updated: 20 September 2002

English: downstream

Welsh: at y cwsmer

Status C

Subject: ICT

Part of speech: Adjective

Definition: Broadband speed eg 2mbps downstream.

Last Updated: 22 January 2007

English: downstream industry

Welsh: diwydiant derbyn

Status C

Subject: Economic development

Part of speech: Noun, Masculine, Singular

Last Updated: 1 December 2003

English: downstream oil sector

Welsh: sector olew is

Status C

Subject: Economic development

Part of speech: Noun, Masculine, Singular

Definition: The Downstream Oil sector is the last stage of the oil processing cycle. The networks and companies responsible retailing and distribution of the products.

Last Updated: 5 June 2015

English: downstream risk

Welsh: risg ymhellach i lawr y gadwyn gyflenwi

Status A

Subject: Economic development

Part of speech: Noun, Feminine, Singular

Context: In a supply chain.

Last Updated: 6 January 2014

English: downstream space research

Welsh: ymchwil eilaidd diwydiant y gofod

Status B

Subject: Economic development

Part of speech: Noun, Feminine, Singular

Context: Mae Prifysgol Aberystwyth yn chwarae rhan weithredol ym Mhartneriaeth Academaidd Gofod Cymru ac mae wedi helpu prosiect Beagle 2 drwy ei Grŵp Roboteg Deallus. Mae hefyd yn cynnig Canolfan Ymchwil Arsylwi'r Ddaear sy'n darparu arbenigedd mewn ymchwil sylfaenol ac ymchwil eilaidd diwydiant y gofod.

Last Updated: 14 February 2019

English: downturn

Welsh: dirywiad

Status C

Subject: Economic development

Part of speech: Noun, Masculine, Singular

Definition: cwymp, tro ar i lawr

Last Updated: 1 December 2003

English: downward bias

Welsh: tuedd tuag i lawr

Status B

Subject: Finance and statistics

Part of speech: Noun, Feminine, Singular

Last Updated: 5 December 2023

English: downward movements in value

Welsh: symudiadau ar i lawr o ran gwerth

Status C

Subject: Finance and statistics

Part of speech: Noun, Plural

Context: Mae symudiadau ar i lawr o ran gwerth yn cael eu gosod yn erbyn unrhyw falans credyd a ddelir yn y gronfa ailbrisiadau nes i’r credyd ddod i ben a chânt eu gosod fel traul wedyn yn y Datganiad o Wariant Net Cynhwysfawr.

Notes: Yng nghyd-destun asedau ac atebolrwyddau yng nghyfrifon Llywodraeth Cymru.

Last Updated: 24 October 2024

English: downward trend

Welsh: tuedd ar i lawr

Status C

Subject: Finance and statistics

Part of speech: Noun, Feminine, Singular

Last Updated: 3 October 2005

English: downy birch

Welsh: bedwen gyffredin

Status A

Subject: Plants

Part of speech: Noun, Feminine, Singular

Definition: Betula pubescens

Notes: Mae bedwen lwyd yn enw amgen ar Betula pubescens. Fodd bynnag, defnyddiwch bedwen gyffredin er mwyn gwahaniaethu rhwng Betula pubescens a'r rhywogaeth Betula populifolia, sydd â'r enw Saesneg cyffredin grey birch.

Last Updated: 19 August 2025

English: dowry gap funding

Welsh: cyllid llenwi'r bwlch gwaddoli

Status B

Subject: Housing

Part of speech: Noun, Masculine, Singular

Definition: Cyllid a ddarperir i 10 o gymdeithasau tai a ffurfiwyd wrth drosglwyddo'r stoc tai cymdeithasol oddi wrth awdurdodau lleol penodol iddynt.

Last Updated: 22 November 2024

English: doxing

Welsh: docsio

Status B

Subject: ICT

Part of speech: Verb

Definition: Y weithred o chwilio am wybodaeth breifat am unigolyn neu wybodaeth sy’n golygu y gellir adnabod unigolyn, a chyhoeddi’r wybodaeth honno ar y we. Yn aml gwneir hyn gyda bwriad maleisus.

Notes: Mae’r ffurf Saesneg doxxing yn gyfystyr.

Last Updated: 25 July 2024

English: doxxing

Welsh: docsio

Status B

Subject: ICT

Part of speech: Verb

Notes: Mae’r ffurf Saesneg doxing yn gyfystyr.

Last Updated: 25 July 2024

English: doxycycline

Welsh: docsiseiclin

Status B

Subject: Health

Part of speech: Noun, Masculine, Singular

Definition: Meddyginiaeth wrthfiotig sy’n cael ei defnyddio i drin amrywiaeth o heintiau bacteraidd ac i atal heintiau a drosglwyddir yn rhywiol.

Last Updated: 6 November 2025

English: doxycycline post-exposure prophylaxis

Welsh: docsiseiclin proffylacsis ôl-gysylltiol

Status B

Subject: Health

Part of speech: Noun, Masculine, Singular

Definition: Defnydd o’r gwrthfiotig docsiseiclin ar ôl cysylltiad rhywiol i leihau'r risg o heintiau a drosglwyddir yn rhywiol, megis HIV a gonorea.

Notes: Defnyddir y ffurf fer doxyPEP / docsiPEP yn aml.

Last Updated: 6 November 2025

English: doxyPEP

Welsh: docsiPEP

Status B

Subject: Health

Part of speech: Noun, Masculine, Singular

Definition: Defnydd o’r gwrthfiotig docsiseiclin fel dull ataliol ar ôl cysylltiad rhywiol i leihau'r risg o heintiau a drosglwyddir yn rhywiol, megis HIV a gonorea.

Notes: Ffurf fer ar y term doxycycline post-exposure prophylaxis / docsiseiclin proffylacsis ôl-gysylltiol yw hwn.

Last Updated: 6 November 2025

English: DP

Welsh: taliadau uniongyrchol

Status C

Subject: Finance and statistics

Part of speech: Noun

Definition: direct payments

Last Updated: 7 May 2008

English: DP

Welsh: Partneriaeth Ddatblygu

Status C

Subject: Europe

Part of speech: Noun, Feminine, Singular

Definition: Development Partnership

Last Updated: 6 December 2005

English: DPA

Welsh: Deddf Diogelu Data

Status A

Subject: Titles of legislation

Part of speech: Proper noun, Feminine, Singular

Definition: Data Protection Act 1988

Last Updated: 18 December 2007

English: DPB

Welsh: Y Bwrdd Ymarfer Deintyddol

Status C

Subject: Health

Part of speech: Noun, Masculine, Singular

Definition: Dental Practice Board

Last Updated: 25 July 2005

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