TermCymru

Results are displayed in alphabetical order.
English: hydraulic ram pipe
Welsh: piben ram hydrolig
Status C
Subject: Environment
Part of speech: Noun, Feminine, Singular
Last Updated: 16 January 2013
English: hydraulic ram pump
Welsh: pwmp 'ram' hydrolig
Status C
Subject: Agriculture
Part of speech: Noun, Masculine, Singular
Definition: Pwmp sy’n gweithio â gwasgedd hydrolig i godi dŵr glân.
Last Updated: 18 July 2018
English: hydraulics
Welsh: hydroleg
Status C
Subject: Transport
Part of speech: Noun, Feminine, Singular
Last Updated: 1 December 2004
English: Hydrocarbons Licensing Directive Regulations 1995
Welsh: Rheoliadau Cyfarwyddeb Trwyddedu Hydrocarbonau 1995
Status B
Subject: Titles of legislation
Part of speech: Noun, Plural
Notes: Teitl cwrteisi ar ddarn o ddeddfwriaeth sydd ar gael yn Saesneg yn unig.
Last Updated: 29 November 2018
English: hydroelectric
Welsh: hydrodrydanol
Status C
Subject: Environment
Part of speech: Adjective
Last Updated: 12 August 2014
English: hydro-electric power plants
Welsh: gweithfeydd pŵer trydan dŵr
Status C
Subject: Environment
Part of speech: Noun, Plural
Last Updated: 1 October 2008
English: hydro-environmental impact
Welsh: effaith hydroamgylcheddol
Status B
Subject: Environment
Part of speech: Noun, Masculine, Singular
Plural: effeithiau hydroamgylcheddol
Last Updated: 23 March 2021
English: hydro-environmental modelling study
Welsh: astudiaeth fodelu hydroamgylcheddol
Status B
Subject: Environment
Part of speech: Noun, Feminine, Singular
Plural: astudiaethau modelu hydroamgylcheddol
Last Updated: 23 March 2021
English: hydroflurocarbon
Welsh: hydrofflworocarbon
Status C
Subject: Environment
Part of speech: Noun, Masculine, Singular
Last Updated: 13 July 2006
English: hydrogen
Welsh: hydrogen
Status A
Subject: Environment
Part of speech: Noun, Masculine, Singular
Definition: Symbol cemegol: H
Notes: Elfen gemegol. Gweler y canllawiau sillafu termau benthyg gwyddonol ar BydTermCymru.
Last Updated: 18 June 2025
English: hydrogenated fats
Welsh: brasterau hydrogenaidd
Status C
Subject: Food
Part of speech: Noun, Plural
Last Updated: 24 January 2011
English: hydrogenated vegetable oil
Welsh: olew llysiau hydrogenaidd
Status B
Subject: Food
Part of speech: Noun, Masculine, Singular
Last Updated: 8 March 2012
English: hydrogenation
Welsh: hydrogenu
Status B
Subject: Food
Part of speech: Verb
Last Updated: 8 March 2012
English: hydrogen capture
Welsh: dal hydrogen
Status B
Subject: Environment
Part of speech: Verb
Last Updated: 20 July 2023
English: hydrogen powered vehicle
Welsh: cerbyd sy'n rhedeg ar hydrogen
Status C
Subject: Transport
Part of speech: Noun, Masculine, Singular
Last Updated: 7 February 2008
English: hydrogen sulphate salt
Welsh: halwyn hydrogen sylffad
Status B
Subject: Environment
Part of speech: Noun, Masculine, Singular
Plural: halwynau hydrogen sylffad
Notes: Term a ddefnyddir yn Rheoliadau Ychwanegion Bwyd Anifeiliaid (Awdurdodiadau) (Cymru) 2022.
Last Updated: 10 December 2024
English: hydrogen sulphide
Welsh: hydrogen sylffid
Status A
Subject: Environment
Part of speech: Noun, Masculine, Singular
Last Updated: 1 December 2008
English: hydrogeology
Welsh: hydroddaeareg
Status B
Subject: Environment
Part of speech: Noun, Feminine, Singular
Last Updated: 19 May 2022
English: hydrographical
Welsh: hydrograffig
Status A
Subject: Environment
Part of speech: Adjective
Context: Nid yw newid parhaol mewn amodau hydrograffig yn cael effaith niweidiol ar ecosystemau morol.
Last Updated: 6 June 2019
English: hydrolised protein
Welsh: protein wedi’i hydroleiddio
Status C
Subject: Agriculture
Part of speech: Noun, Masculine, Singular
Last Updated: 29 July 2003
English: hydrolysed
Welsh: wedi'i hydroleiddio
Status C
Subject: Food
Part of speech: Adjective
Last Updated: 7 June 2007
English: hydro-morphological characteristics
Welsh: nodweddion hydroforffolegol
Status B
Subject: Environment
Part of speech: Noun, Plural
Last Updated: 23 March 2021
English: hydroponic
Welsh: hydroponig
Status C
Subject: Agriculture
Part of speech: Adjective
Last Updated: 12 August 2021
English: hydroponics
Welsh: hydroponeg
Status C
Subject: Agriculture
Part of speech: Noun, Masculine, Singular
Last Updated: 12 August 2021
English: hydropower
Welsh: ynni dŵr
Status C
Subject: Environment
Part of speech: Noun, Masculine, Singular
Last Updated: 11 March 2004
English: Hydropower Task and Finish group
Welsh: Grŵp Gorchwyl a Gorffen ar Ynni Dŵr
Status A
Subject: Planning
Part of speech: Noun, Masculine, Singular
Last Updated: 20 December 2017
English: hydrotherapy
Welsh: hydrotherapi
Status B
Subject: Health
Part of speech: Noun, Masculine, Singular
Last Updated: 23 January 2025
English: hydroxocobalamin
Welsh: hydrocsocobalamin
Status B
Subject: Health
Part of speech: Noun, Masculine, Singular
Notes: Triniaeth ar gyfer diffyg fitamin B12.
Last Updated: 3 July 2024
English: hydroxychloroquine
Welsh: hydrocsiclorocwin
Status B
Subject: Health
Part of speech: Noun, Masculine, Singular
Notes: Term allweddol COVID-19
Last Updated: 2 July 2020
English: hydroxychloroquine
Welsh: hydrocsiclorocwin
Status B
Subject: Health
Part of speech: Noun, Masculine, Singular
Last Updated: 25 February 2021
English: hygiene facilities
Welsh: cyfleusterau hylendid
Status B
Subject: Health
Part of speech: Noun, Plural
Context: Y gofyniad sylfaenol yw bod rhaid i unigolion gael eu cefnogi, cael mynediad at fwyd a chyfleusterau hylendid priodol, cael mynediad at gymorth meddygol yn dibynnu ar symptomau, a rhaid i bob llety fod wedi'i lanhau'n briodol fel y bo angen i gefnogi rheoli heintiau.
Last Updated: 14 May 2020
English: hygiene improvement notice
Welsh: hysbysiad gwella hylendid
Status C
Subject: Food
Part of speech: Noun, Masculine, Singular
Last Updated: 3 September 2008
English: hygiene prohibition order
Welsh: gorchymyn gwahardd at ddibenion hylendid
Status C
Subject: Food
Part of speech: Noun, Masculine, Singular
Last Updated: 3 September 2008
English: hygiene re-rating inspection
Welsh: arolygiad ailsgorio hylendid
Status B
Subject: Food
Part of speech: Noun, Masculine, Singular
Last Updated: 16 December 2011
English: hygienic
Welsh: hylan
Status B
Subject: Health
Part of speech: Adjective
Context: Yn gyffredinol, dylai cyfleusterau cegin fod mewn ystafell neu ardal wedi’i chynllunio’n briodol neu ardal i baratoi a choginio bwyd yn ddiogel a hylan.
Last Updated: 10 September 2024
English: hymenoplasty
Welsh: hymenoplasti
Status C
Subject: Health
Part of speech: Noun, Masculine, Singular
Last Updated: 10 March 2022
English: hyperactivity
Welsh: gorfywiogrwydd
Status B
Subject: Health
Part of speech: Noun, Masculine, Singular
Last Updated: 16 April 2003
English: hyperacute stroke service
Welsh: gwasanaeth ar gyfer strôc hyperacíwt
Status A
Subject: Health
Part of speech: Noun, Masculine, Singular
Last Updated: 22 April 2014
English: hyperarousal
Welsh: gorgynnwrf
Status C
Subject: General
Part of speech: Noun, Masculine, Singular
Last Updated: 28 September 2011
English: hyperbaric centres
Welsh: canolfannau hyperbarig
Status C
Subject: Health
Part of speech: Noun, Plural
Last Updated: 4 April 2007
English: Hyperbaric Oxygen Therapy
Welsh: Therapi Ocsigen Hyperbarig
Status C
Subject: Health
Part of speech: Noun, Masculine, Singular
Last Updated: 5 June 2006
English: Hyperbaric Oxygen Unit
Welsh: Uned Ocsigen Hyperbarig
Status C
Subject: Health
Part of speech: Noun, Feminine, Singular
Last Updated: 5 June 2006
English: hypercholesterolaemia
Welsh: hypergolosterolaemia
Status B
Subject: Health
Part of speech: Noun, Masculine, Singular
Context: Er bod rhywun yn gallu ymgyflwyno â chasgliad penodol o symptomau, mae'n bwysig sicrhau bod y driniaeth a roddir iddo yn ystyried ei glefyd cardiofasgwlaidd yn gyffredinol. Bydd hyn yn cynnwys clefyd y rhydwelïau coronaidd, strôc, gorbwysedd, hypergolosterolaemia, diabetes, clefyd cronig yn yr arennau, clefyd y rhydwelïau perifferol a dementia fasgwlaidd. Mae tystiolaeth glir bod yr atal eilaidd hwn yn chwarae rôl bwysig o ran lleihau afiachedd a marwolaethau.
Last Updated: 11 April 2024
English: hyperfine
Welsh: tra-main
Status B
Subject: Economic development
Part of speech: Adjective
Context: Nuclear physics
Last Updated: 16 March 2012
English: hyperlink
Welsh: hyperddolen
Status C
Subject: ICT
Part of speech: Noun, Masculine, Singular
Plural: hyperddolenni
Last Updated: 17 March 2025
English: hyperlocal
Welsh: hyperleol
Status C
Subject: Culture and the arts
Part of speech: Adjective
Context: h.y. o ddiddordeb lleol iawn
Last Updated: 10 April 2012
English: hypermedia
Welsh: hypergyfryngau
Status B
Subject: ICT
Part of speech: Noun, Plural
Last Updated: 19 July 2005
English: hypermobile joint
Welsh: cymal hypersymudol
Status B
Subject: Health
Part of speech: Noun, Masculine, Singular
Plural: cymalau hypersymudol
Definition: Cymal sy'n gallu symud ymhellach na'r ystod arferol, heb lawer o ymdrech.
Last Updated: 10 October 2024
English: hypermobility
Welsh: hypersymudedd
Status C
Subject: Health
Part of speech: Noun, Masculine, Singular
Last Updated: 21 July 2022
English: hyperproportionality
Welsh: hypergyfranoldeb
Status B
Subject: Politics
Part of speech: Noun, Masculine, Singular
Last Updated: 7 September 2023