TermCymru

Results are displayed in Welsh alphabetical order A-Y
Welsh: biomas sych
English: dry biomass
Status C
Subject: Environment
Part of speech: Noun, Masculine, Singular
Definition: I’w losgi i gynhyrchu gwres neu stêm.
Last updated: 17 November 2011
Welsh: bionwy
English: biogas
Status B
Subject: Environment
Part of speech: Noun, Masculine, Singular
Plural: bionwyon
Definition: Nwy, yn bennaf ar gyfer tanwydd, sydd wedi ei gynhyrchu drwy eplesiad deunydd organig.
Last updated: 16 November 2023
Welsh: bio-olosg
English: biochar
Status C
Subject: Environment
Part of speech: Noun, Masculine, Singular
Last updated: 1 November 2010
Welsh: biopsi
English: biopsy
Status C
Subject: Health
Part of speech: Noun, Masculine, Singular
Definition: To take small samples from the human body for diagnostic purposes.
Last updated: 7 May 2009
Welsh: biopsi hylif
English: liquid biopsy
Status B
Subject: Health
Part of speech: Noun, Masculine, Singular
Plural: biopsïau hylif
Definition: Gweithdrefn feddygol lle cymerir sampl o hylif corfforol i'w astudio.
Last updated: 27 April 2023
Welsh: biopsi meinwe
English: tissue biopsy
Status B
Subject: Health
Part of speech: Noun, Masculine, Singular
Plural: biopsïau meinwe
Definition: Gweithdrefn feddygol lle cymerir sampl o feinwe corfforol i'w astudio.
Last updated: 27 April 2023
Welsh: biopsi o'r afu
English: liver biopsy
Status C
Subject: Health
Part of speech: Noun, Masculine, Singular
Last updated: 13 June 2011
Welsh: biopsi o'r coluddyn
English: intestinal biopsy
Status C
Subject: Health
Part of speech: Noun, Masculine, Singular
Last updated: 13 June 2011
Welsh: biopsi rhefrol
English: rectal biopsy
Status B
Subject: Health
Part of speech: Noun, Masculine, Singular
Plural: biopsïau rhefrol
Last updated: 24 September 2025
Welsh: biopsi uwchsain trawsrefrol
English: transrectal ultrasound guided biopsy
Status C
Subject: Health
Part of speech: Noun, Masculine, Singular
Last updated: 16 August 2018
Welsh: biosefydlogi
English: biostabilisation
Status B
Subject: Environment
Part of speech: Verb
Definition: Biostabilization (better known as composting) is a process which allows the biological treatment of the putrescible part of waste, making it inert and therefore less dangerous to the environment.
Context: However, we feel that further debate is needed regarding moisture loss during biostabilisation, and would welcome consideration of the inclusion of input rather than output weight as the tonnage contributing towards recovery targets.
Notes: Proses sy'n debyg iawn i gompostio.
Last updated: 13 April 2017
Welsh: bioseicogymdeithasol
English: biopsychosocial
Status C
Subject: Health
Part of speech: Noun, Masculine, Singular
Context: Y model bioseicogymdeithasol - mae'r model hwn a'r model cymdeithasol yn wahanol ac mae angen eu hystyried yn gysyniadau ar wahân.
Last updated: 3 September 2020
Welsh: biosynhwyrydd
English: biosensor
Status C
Subject: Health
Part of speech: Noun, Masculine, Singular
Plural: biosynwyryddion
Last updated: 30 August 2024
Welsh: biotechnoleg
English: biotech
Status C
Subject: Environment
Part of speech: Noun, Feminine, Singular
Last updated: 2 February 2006
Welsh: biotechnoleg
English: biotechnology
Status C
Subject: Environment
Part of speech: Noun, Feminine, Singular
Definition: Nid yw 'bio' + cyfaddasiad o air Saesneg yn achosi treiglad yn yr ail elfen.
Last updated: 17 June 2004
Welsh: Biotechnoleg ac Iechyd Planhigion
English: Plant Health and Biotechnology
Status C
Subject: Environment
Part of speech: Noun, Masculine, Singular
Last updated: 8 December 2004
Welsh: biotechnoleg las
English: blue biotechnology
Status B
Subject: Environment
Part of speech: Noun, Feminine, Singular
Definition: Gwyddoniaeth a thechnoleg wedi'u cymhwyso i organebau dyfrol byw, ar gyfer cynhyrchu gwybodaeth, nwyddau a gwasanaethau.
Last updated: 2 April 2025
Welsh: biotechnolegol
English: biotechnological
Status A
Subject: Environment
Part of speech: Adjective
Definition: NID biodechnolegol. Nid yw 'bio' + cyfaddasiad o air Saesneg yn achosi treiglad yn yr ail elfen.
Last updated: 7 October 2002
Welsh: biotig
English: biotic
Status A
Subject: Environment
Part of speech: Adjective
Last updated: 2 October 2013
Welsh: biowybodeg
English: bioinformatics
Status C
Subject: ICT
Part of speech: Noun, Feminine, Singular
Last updated: 1 December 2004
Welsh: biowyddoniaeth
English: bioscience
Status C
Subject: Health
Part of speech: Noun, Masculine, Singular
Last updated: 14 September 2004
Welsh: bio-ynni
English: bio-energy
Status C
Subject: Environment
Part of speech: Noun, Masculine, Singular
Last updated: 20 August 2008
Welsh: Birkenhead
English: Birkenhead
Status A
Subject: Place-names
Part of speech: Proper noun
Definition: Lle yn Lloegr. Gall Penbedw fod yn briodol mewn rhai cyd-destunau llenyddol neu addysgol.
Context: Nid Penybircwy.
Last updated: 22 January 2004
Welsh: Birthrate Plus
English: Birthrate Plus
Status C
Subject: Health
Context: Dull o gynllunio'r gweithlu yn y sector bydwreigiaeth, nod masnach cofrestredig.
Last updated: 1 November 2010
Welsh: BISD
English: BISD
Status C
Subject: ICT
Part of speech: Noun, Feminine, Singular
Definition: Business and Information Systems Division
Last updated: 13 May 2004
Welsh: bisffenol A
English: bisphenol A
Status B
Subject: Environment
Part of speech: Noun, Masculine, Singular
Definition: Cyfansoddyn cemegol a ddefnyddir yn gyffredin wrth weithgynhyrchu plastigion.
Last updated: 1 September 2022
Welsh: bisged ddŵr
English: water biscuit
Status B
Subject: Food
Part of speech: Noun, Feminine, Singular
Plural: bisgedi dŵr
Last updated: 3 December 2025
Welsh: bisglycinad fferrus
English: ferrous bisglycinate
Status B
Subject: Health
Part of speech: Noun, Masculine, Singular
Last updated: 12 January 2023
Welsh: Bishop's Castle
English: Bishops Castle
Status A
Subject: Place-names
Part of speech: Proper noun
Definition: Lle yn Lloegr.
Context: Nid Trefesgob.
Last updated: 14 August 2003
Welsh: BISI
English: BISI
Status C
Subject: ICT
Part of speech: Noun, Feminine, Singular
Definition: Broadband Infrastructure Subsidy Initiative
Last updated: 19 March 2004
Welsh: bismwth
English: bismuth
Status A
Subject: Environment
Part of speech: Noun, Masculine, Singular
Definition: Symbol cemegol: Bi
Notes: Elfen gemegol. Gweler y canllawiau sillafu termau benthyg gwyddonol ar BydTermCymru.
Last updated: 18 June 2025
Welsh: bison
English: bison
Status C
Subject: Law
Part of speech: Noun, Masculine, Singular
Last updated: 5 March 2007
Welsh: bitiau yr eiliad
English: bits per second
Status C
Subject: ICT
Part of speech: Noun, Plural
Definition: bps
Last updated: 2 September 2004
Welsh: Biwmares
English: Beaumaris
Status C
Subject: Place-names
Part of speech: Proper noun
Last updated: 19 August 2008
Welsh: Biwro Cenedlaethol y Plant
English: National Children's Bureau
Status C
Subject: Social services
Part of speech: Noun, Masculine, Singular
Definition: NCB
Last updated: 26 September 2007
Welsh: Biwro Cenedlaethol y Plant
English: NCB
Status C
Subject: Social services
Part of speech: Noun, Masculine, Singular
Definition: National Children's Bureau
Last updated: 26 September 2007
Welsh: Biwro Cyflogaeth a Menter
English: Employment & Enterprise Bureau
Status B
Subject: General
Part of speech: Noun, Masculine, Singular
Notes: Lluosog: Biwroau Cyflogaeth a Menter
Last updated: 9 June 2022
Welsh: Biwro Ewropeaidd yr Ieithoedd Llai
English: European Bureau for Lesser Used Languages
Status A
Subject: Europe
Part of speech: Noun, Masculine, Singular
Last updated: 5 November 2003
Welsh: Biwro Gwirfoddol Interlink
English: Interlink Volunteer Bureau
Status C
Subject: Social services
Part of speech: Noun, Masculine, Singular
Last updated: 28 November 2007
Welsh: Black Association of Women Step Out
English: Black Association of Women Step Out
Status C
Subject: Community development
Definition: BAWSO
Last updated: 10 January 2003
Welsh: Black Leadership Group
English: Black Leadership Group
Status A
Subject: General
Part of speech: Noun, Masculine, Singular
Notes: Menter ar gyfer y Deyrnas Unedig gyfan.
Last updated: 15 June 2023
Welsh: blacmel
English: blackmail
Status B
Subject: Law
Part of speech: Noun, Masculine, Singular
Notes: Teitl ar drosedd
Last updated: 27 November 2025
Welsh: blacmelio
English: blackmail
Status B
Subject: Justice and order
Part of speech: Verb
Last updated: 2 August 2012
Welsh: blacmeliwr
English: blackmailer
Status B
Subject: Justice and order
Part of speech: Noun, Masculine, Singular
Last updated: 2 August 2012
Welsh: blacmel rhywiol
English: sextortion
Status A
Subject: Justice and order
Part of speech: Noun, Masculine, Singular
Definition: Gweithgaredd i sicrhau arian neu ffafrau rhywiol gan rywun drwy fygwth rhyddhau tystiolaeth o'u bywyd rhywiol, er enghraifft delweddau neu fideos a gasglwyd ar-lein
Notes: Safonwyd y term hwn ar sail y canllawiau ar drosi termau slangaidd Saesneg. Gweler yr erthygl yn yr Arddulliadur. Pe byddai angen gwahaniaethu rhwng 'sextortion' a 'sexual blackmail' mewn testun, gellid defnyddio 'secstorsiwn' i gyfleu 'sextortion'.
Last updated: 7 May 2025
Welsh: Blacon
English: Blacon
Status A
Subject: Place-names
Part of speech: Proper noun
Definition: Lle yn Lloegr.
Last updated: 2 May 2013
Welsh: Blaenafon
English: Blaenavon
Status A
Subject: Place-names
Part of speech: Proper noun
Notes: Ward etholiadol ym Mwrdeistref Sirol Torfaen. Dyma'r enwau a ragnodwyd yn Gymraeg a Saesneg ar gyfer y ward yng Ngorchymyn Bwrdeistref Sirol Torfaen (Trefniadau Etholiadol) 2021.
Last updated: 17 August 2022
Welsh: Blaenau
English: Blaina
Status B
Subject: Place-names
Part of speech: Proper noun
Definition: Blaenau Gwent
Last updated: 14 August 2003
Welsh: Blaenau
English: Upper
Status C
Subject: Place-names
Part of speech: Noun, Plural
Definition: wrth sôn am gwm, e.e. Blaenau Cwm Tawe, byth Cwm Tawe Uchaf
Last updated: 8 November 2004
Welsh: Blaenau Cwm Rhymni
English: Upper Rhymney Valley
Status B
Subject: Place-names
Part of speech: Noun, Plural
Context: Mae gwasanaethau'r Bwrdd Iechyd yn cael eu darparu hefyd i bobl sy'n byw yn ardaloedd cyfagos Blaenau Cwm Rhymni, De Powys, Gogledd Caerdydd a Gorllewin y Fro.
Last updated: 9 July 2025