TermCymru

Results are displayed in Welsh alphabetical order A-Y
Welsh: smotiau duon llwyfen
English: black spot of elm
Status C
Subject: Law
Part of speech: Noun, Plural
Last updated: 22 September 2009
Welsh: SMP
English: SMP
Status C
Subject: Agriculture
Part of speech: Noun, Masculine, Singular
Definition: Soil Management Plan
Last updated: 14 April 2004
Welsh: SMS-rwydo
English: smishing
Status A
Subject: ICT
Part of speech: Verb
Definition: Achos o we-rwydo gan ddefnyddio negeseuon testun.
Last updated: 21 December 2020
Welsh: smwddi
English: smoothie
Status B
Subject: Food
Part of speech: Noun, Masculine, Singular
Plural: smwddis
Definition: Diod lyfn, drwchus a wnaed o ffrwythau a/neu lysiau wedi'u cymysgu â llaeth, hufen iâ, iogwrt neu sudd ffrwythau.
Last updated: 24 September 2025
Welsh: smyglwr
English: smuggler
Status C
Subject: Culture and the arts
Part of speech: Noun, Masculine, Singular
Last updated: 15 December 2010
Welsh: smygu
English: smoking
Status A
Subject: Health
Part of speech: Verb
Definition: Defnyddir "ysmygu" mewn cyd-destunau ffurfiol.
Last updated: 10 August 2006
Welsh: smygu goddefol
English: passive smoking
Status A
Subject: Health
Part of speech: Verb
Last updated: 25 November 2004
Welsh: smygu ymhlith mamau
English: maternal smoking
Status B
Subject: Health
Part of speech: Verb
Last updated: 18 November 2025
Welsh: sŵn
English: noise
Status A
Subject: Environment
Part of speech: Noun, Masculine, Singular
Plural: synau
Definition: Sain y bernir neu y canfyddir ei bod yn un nas dymunir neu'n un niweidiol.
Notes: Yng nghyd-destun sŵn amgylcheddol.
Last updated: 26 January 2023
Welsh: sân Albanaidd
English: Scottish seine
Status A
Subject: Environment
Part of speech: Noun, Feminine, Singular
Definition: Type of fishing net.
Last updated: 11 March 2013
Welsh: Sân Albanaidd
English: Scottish seine
Status B
Subject: Agriculture
Part of speech: Noun, Feminine, Singular
Last updated: 26 March 2020
Welsh: Sân Albanaidd yn bâr
English: Scottish pair seine
Status B
Subject: Agriculture
Part of speech: Noun, Feminine, Singular
Last updated: 26 March 2020
Welsh: sŵn amgylcheddol
English: environmental noise
Status A
Subject: Environment
Part of speech: Noun, Masculine, Singular
Definition: Sŵn niweidiol neu nas dymunir a ddaw o drafnidiaeth (ffyrdd, rheilffyrdd, traffig awyr) a diwydiant. Gall ddigwydd mewn cyfuniad â llygredd aer. Nid yw sŵn amgylcheddol yn cynnwys sŵn a ddaw o weithgareddau domestig, cymdogion, gweithleoedd na gweithgareddau milwrol.
Last updated: 26 January 2023
Welsh: sŵn amledd isel
English: low frequency noise
Status C
Subject: Environment
Part of speech: Noun, Masculine, Singular
Last updated: 17 November 2011
Welsh: sân angor
English: anchor seine
Status B
Subject: Agriculture
Part of speech: Noun, Feminine, Singular
Notes: Mae'r term 'Danish seine' yn gyfystyr.
Last updated: 26 March 2020
Welsh: snap
English: snap
Status B
Subject: ICT
Part of speech: Noun, Masculine, Singular
Last updated: 19 July 2005
Welsh: SNAP Cymru
English: SNAP Cymru
Status C
Subject: Health
Part of speech: Neutral
Definition: Special Needs Advisory Project
Last updated: 23 July 2003
Welsh: snapio i'r grid
English: snap to grid
Status B
Subject: ICT
Part of speech: Verb
Last updated: 19 July 2005
Welsh: Snatchwood
English: Snatchwood
Status A
Subject: Place-names
Part of speech: Proper noun
Definition: Tor-faen
Last updated: 14 August 2003
Welsh: sŵn cefndir
English: background noise
Status B
Subject: Health
Part of speech: Noun, Masculine, Singular
Notes: Yng nghyd-destun profion gwyddonol.
Last updated: 22 July 2020
Welsh: sân cwch 
English: boat seine
Status B
Subject: Agriculture
Part of speech: Noun, Feminine, Singular
Notes: Mae'r term 'vessel seine' yn gyfystyr.
Last updated: 26 March 2020
Welsh: sân cwch 
English: vessel seine
Status B
Subject: Agriculture
Part of speech: Noun, Feminine, Singular
Notes: Mae'r term 'boat seine' yn gyfystyr.
Last updated: 26 March 2020
Welsh: sân Danaidd
English: Danish seine
Status A
Subject: Environment
Part of speech: Noun, Feminine, Singular
Definition: Type of fishing net.
Context: Lluosog: sanau Danaidd.
Last updated: 11 March 2013
Welsh: sân Danaidd
English: Danish seine
Status B
Subject: Agriculture
Part of speech: Noun, Feminine, Singular
Notes: Mae'r term 'anchor seine' yn gyfystyr.
Last updated: 26 March 2020
Welsh: sŵn, diflastod sŵn a dirgryndod
English: noise, noise nuisance and vibration
Status C
Subject: Health
Part of speech: Noun, Masculine, Singular
Last updated: 22 May 2003
Welsh: sŵn ergydiol
English: impulsive sound
Status A
Subject: Environment
Part of speech: Noun, Masculine, Singular
Plural: synau ergydiol
Context: Dylid rheoli gweithgareddau dynol a all gyflwyno synau ergydiol er mwyn dileu effeithiau niweidiol arwyddocaol ar rywogaethau a phoblogaethau dan fygythiad.
Last updated: 6 June 2019
Welsh: Snowsport Cymru
English: Snowsport Wales
Status C
Subject: Education
Definition: formerly Ski Council of Wales (SCOW)
Last updated: 4 February 2003
Welsh: snŵs
English: snus
Status B
Subject: Health
Part of speech: Noun, Masculine, Singular
Definition: Math o dybaco powdr llaith a ddatblygwyd yn wreiddiol yn Sweden. Fe’i cymerir drwy’r geg fel arfer.
Notes: Daw’r term yn wreiddiol o air Swedeg.
Last updated: 7 November 2024
Welsh: sŵn tanddwr
English: underwater noise
Status A
Subject: Environment
Part of speech: Noun, Masculine, Singular
Plural: synau tanddwr
Context: Ar hyn o bryd, mae ein dealltwriaeth o lefelau, dosbarthiad ac effeithiau sŵn tanddwr yn gyfyngedig.
Last updated: 6 June 2019
Welsh: sân traeth
English: beach seine
Status A
Subject: Environment
Part of speech: Noun, Feminine, Singular
Definition: Type of fishing net.
Context: Lluosog: sanau traeth.
Last updated: 11 March 2013
Welsh: sŵn traffig ffyrdd
English: road traffic noise
Status A
Subject: Transport
Part of speech: Noun, Masculine, Singular
Last updated: 27 October 2020
Welsh: sân yn bâr
English: pair seine
Status A
Subject: Environment
Part of speech: Noun, Feminine, Singular
Definition: Type of fishing net.
Context: Lluosog: sanau yn bâr.
Last updated: 11 March 2013
Welsh: SO
English: SO
Status C
Subject: Finance and statistics
Part of speech: Noun, Masculine, Singular
Notes: Dyma'r acronym a ddefnyddir yn y ddwy iaith am Standard Output / Allbwn Safonol
Last updated: 23 March 2017
Welsh: SOCA
English: SOCA
Status A
Subject: Justice and order
Definition: Serious Organised Crime Agency
Last updated: 25 August 2005
Welsh: soced
English: socket
Status B
Subject: ICT
Part of speech: Noun, Masculine, Singular
Last updated: 19 July 2005
Welsh: soced drydan
English: power socket
Status B
Subject: Housing
Part of speech: Noun, Feminine, Singular
Plural: socedi trydan
Last updated: 13 February 2025
Welsh: socedu
English: socket
Status C
Subject: Estates and Cadw
Part of speech: Verb
Last updated: 5 June 2006
Welsh: soced wedi'i osod ar y wal
English: wall mounted socket outlet
Status C
Subject: Housing
Part of speech: Noun, Masculine, Singular
Last updated: 9 February 2009
Welsh: soda pobi
English: baking soda
Status B
Subject: Food
Part of speech: Noun, Masculine, Singular
Definition: sodiwm bicarbonad (NaHCO3)
Last updated: 19 January 2012
Welsh: SoDdGA
English: SSSI
Status B
Subject: Agriculture
Part of speech: Neutral
Definition: Site of Special Scientific Interest
Last updated: 22 September 2004
Welsh: SoDdGA Biolegol a 300m o Lain Clustogi
English: Biological SSSI and 300m Buffer
Status B
Subject: Environment
Part of speech: Noun, Feminine, Singular
Context: Glastir
Last updated: 28 May 2012
Welsh: SoDdGA Biolegol ar Arfordir ac Iseldir â Blaenoriaeth
English: Prioritised Biological Coastal and Lowland SSSI
Status B
Subject: Environment
Part of speech: Noun, Feminine, Singular
Context: Glastir
Last updated: 28 May 2012
Welsh: sodiwm
English: sodium
Status A
Subject: Environment
Part of speech: Noun, Masculine, Singular
Definition: Symbol cemegol: Na
Notes: Elfen gemegol. Gweler y canllawiau sillafu termau benthyg gwyddonol ar BydTermCymru.
Last updated: 18 June 2025
Welsh: sodiwm clorid
English: sodium chloride
Status B
Subject: Health
Part of speech: Noun, Masculine, Singular
Last updated: 8 September 2020
Welsh: sodiwm deucarbonad
English: sodium bicarbonate
Status B
Subject: Health
Part of speech: Noun, Masculine, Singular
Plural: sodiwm deucarbonad
Last updated: 6 November 2019
Welsh: sodiwm falproad
English: sodium valproate
Status B
Subject: Health
Part of speech: Noun, Masculine, Singular
Last updated: 21 July 2022
Welsh: sodomiaeth
English: buggery
Status B
Subject: Justice and order
Part of speech: Noun, Feminine, Singular
Last updated: 2 August 2012
Welsh: soffit
English: soffit
Status C
Subject: Estates and Cadw
Part of speech: Noun, Masculine, Singular
Definition: Estyll o dan y bondo - hynny yw RHWNG y to a'r wal.
Last updated: 24 July 2008
Welsh: soffit pren
English: timber soffit
Status C
Subject: Agriculture
Part of speech: Noun, Masculine, Singular
Last updated: 28 February 2005
Welsh: sofl
English: stubble
Status C
Subject: Agriculture
Part of speech: Noun, Plural
Last updated: 29 July 2003