TermCymru

Results are displayed in English alphabetical order A-Z

Welsh: triniaeth ddistaw

Status B

Subject: Health

Part of speech: Noun, Feminine, Singular

Definition: Gwrthod cyfathrebu a/neu gydnabod person arall gyda'r bwriad o achosi niwed.

Notes: Gall y term hwn fod yn gyfystyr â stonewalling / codi waliau, ond sylwer fod gan y term hwnnw ystyr arall gysylltiedig.

Last Updated: 2 July 2025

English: silhouette

Welsh: silwét

Status C

Subject: Agriculture

Part of speech: Noun, Masculine, Singular

Last Updated: 5 December 2006

English: silicate

Welsh: silicad

Status B

Subject: Law

Part of speech: Noun, Masculine, Singular

Last Updated: 25 July 2012

English: silicon

Welsh: silicon

Status A

Subject: Environment

Part of speech: Noun, Masculine, Singular

Definition: Symbol cemegol: Si

Notes: Elfen gemegol. Gweler y canllawiau sillafu termau benthyg gwyddonol ar BydTermCymru.

Last Updated: 18 June 2025

English: silicone bead

Welsh: glain silicon

Status B

Subject: Health

Part of speech: Noun, Masculine, Singular

Plural: gleiniau silicon

Notes: Yng nghyd-destun tyllu’r corff.

Last Updated: 7 September 2023

English: sill

Welsh: silff ffenestr

Status C

Subject: Estates and Cadw

Part of speech: Noun, Feminine, Singular

Definition: The lowest horizontal member of a timber window; also the projecting stone member on which the window sits.

Context: Ffynhonnell: Taflen wybodaeth gyhoeddus Cyngor Gwynedd.

Last Updated: 23 April 2015

English: silled saline lagoon

Welsh: morlyn hallt â sil

Status A

Subject: Environment

Part of speech: Noun, Masculine, Singular

Last Updated: 22 April 2014

English: silo

Welsh: seilo

Status A

Subject: Agriculture

Part of speech: Noun, Masculine, Singular

Plural: seilos

Context: Rhaid i sylfaen y seilo, sylfaen a waliau ei danc elifiant a sianelau ac ochrau unrhyw bibellau fod yn anhydraidd.

Last Updated: 1 October 2020

English: silt

Welsh: gwaddod/silt

Status C

Subject: Agriculture

Part of speech: Noun, Masculine, Singular

Last Updated: 23 September 2005

English: silt

Welsh: siltio

Status A

Subject: Environment

Part of speech: Verb

Last Updated: 17 January 2013

English: silt entrapment pond

Welsh: llyn dal silt

Status C

Subject: Agriculture

Part of speech: Noun, Masculine, Singular

Last Updated: 7 December 2011

English: silt loam

Welsh: lôm gwaddodlyd

Status C

Subject: Agriculture

Part of speech: Noun, Masculine, Singular

Last Updated: 23 September 2005

English: silt trap

Welsh: trap silt

Status C

Subject: Environment

Part of speech: Noun, Masculine, Singular

Last Updated: 5 June 2006

English: silver

Welsh: arian

Status A

Subject: Environment

Part of speech: Noun, Masculine, Singular

Definition: Symbol cemegol: Ag

Notes: Elfen gemegol.

Last Updated: 18 June 2025

English: Silver Award

Welsh: Gwobr Arian

Status C

Subject: Personnel

Part of speech: Noun, Feminine, Singular

Last Updated: 1 November 2011

English: silver birch

Welsh: bedwen arian

Status A

Subject: Plants

Part of speech: Noun, Feminine, Singular

Plural: bedw arian

Definition: betula pendula

Last Updated: 21 June 2022

English: Silver Command

Welsh: Trefn Reoli Arian

Status A

Subject: Fire and rescue

Part of speech: Proper noun, Feminine, Singular

Last Updated: 25 March 2014

English: Silver Jubilee

Welsh: Jiwbilî Arian

Status C

Subject: Culture and the arts

Part of speech: Noun, Feminine, Singular

Last Updated: 12 February 2007

English: Silver Lapwing

Welsh: Silver Lapwing

Status B

Subject: Agriculture

Part of speech: Proper noun, Feminine, Singular

Definition: Name of an agricultural award.

Last Updated: 10 July 2012

English: silver leaf disease

Welsh: clefyd deilen arian

Status C

Subject: Environment

Part of speech: Noun, Masculine, Singular

Last Updated: 13 May 2013

English: silver leaf infection

Welsh: haint y ddeilen arian

Status C

Subject: Plants

Part of speech: Noun, Masculine, Singular

Last Updated: 19 August 2010

English: silver-striped hawkmoth

Welsh: gwalchwyfyn chwim

Status C

Subject: Animals

Part of speech: Noun, Masculine, Singular

Definition: Hippotion celerio

Last Updated: 12 March 2010

English: silver-studded blue butterfly

Welsh: glesyn serennog

Status A

Subject: Animals

Part of speech: Noun, Masculine, Singular

Definition: Plebejus argus

Last Updated: 13 December 2012

English: silver surfers

Welsh: porwyr penwyn

Status C

Subject: ICT

Part of speech: Noun, Plural

Last Updated: 29 October 2010

English: silvicultural systems

Welsh: systemau coedamaeth

Status C

Subject: Agriculture

Part of speech: Noun, Plural

Last Updated: 27 January 2004

English: SIM

Welsh: llawlyfr gwybodaeth y gwasanaeth

Status C

Subject: Fire and rescue

Part of speech: Noun, Masculine, Singular

Definition: service information manual

Last Updated: 9 July 2008

English: simazine

Welsh: simasin

Status C

Subject: Environment

Part of speech: Noun, Masculine, Singular

Last Updated: 1 November 2010

English: SIM farm

Welsh: fferm SIM

Status B

Subject: ICT

Part of speech: Noun, Masculine, Singular

Plural: ffermydd SIM

Definition: Dyfais sy'n trosi cyfathrebiadau llinell sefydlog (ee y rhwydwaith ffonau cartref a busnes) yn gyfathrebiadau ffonau symudol. Prif ddefnydd dyfeisiau o'r fath yw derbyn galwadau neu negeseuon SMS a anfonwyd dros y rhyngrwyd a'u haildrosglwyddo dros rwydweithiau symudol er mwyn cyrraedd ffonau symudol.

Last Updated: 10 April 2025

English: simmer

Welsh: mudferwi

Status C

Subject: Food

Part of speech: Verb

Last Updated: 1 November 2010

English: simple cuts, minor burns and scalds

Welsh: briwiau syml, mân losgiadau a sgaldiadau

Status C

Subject: Health

Part of speech: Noun, Plural

Last Updated: 16 August 2012

English: Simple hedgerow management

Welsh: Rheoli perth/gwrych – amodau syml

Status C

Subject: Agriculture

Part of speech: Verb

Context: In the context of Glastir.

Last Updated: 8 July 2010

English: simple random sample

Welsh: hapsampl syml

Status B

Subject: Finance and statistics

Part of speech: Noun, Feminine, Singular

Plural: hapsamplau syml

Context: Un o effeithiau'r cynllun cymhleth hwn a phwysoli'r arolwg yw bod y cyfeiliornau safonol ar gyfer amcangyfrifon yr arolwg yn gyffredinol uwch na'r cyfeiliornadau safonol a fyddai'n deillio o hapsampl syml o'r un maint.

Last Updated: 4 September 2025

English: Simpler Trade Procedures Board

Welsh: Bwrdd Gweithdrefnau Masnachu Symlach

Status C

Subject: Economic development

Part of speech: Noun, Masculine, Singular

Last Updated: 7 October 2004

English: simple value added

Welsh: gwerth ychwanegol syml

Status C

Subject: Education

Part of speech: Noun, Masculine, Singular

Definition: A measure of how well pupils have achieved relative to what they might have been expected to achieve, based on prior attainment only (cf 'contextual value added').

Last Updated: 17 March 2009

English: Simplified Chinese

Welsh: Tsieineeg Syml

Status C

Subject: Personnel

Part of speech: Noun, Feminine, Singular

Last Updated: 2 August 2010

English: Simplified Planning Zone

Welsh: Parth Cynllunio Syml

Status B

Subject: Planning

Part of speech: Noun, Masculine, Singular

Plural: Parthau Cynllunio Syml

Definition: SPZ

Last Updated: 15 September 2025

English: simplified procedure

Welsh: y drefn seml

Status C

Subject: Agriculture

Part of speech: Noun, Feminine, Singular

Definition: rhyddhau GMOs

Last Updated: 3 October 2003

English: Simplified Scheme

Welsh: Cynllun Syml

Status C

Subject: Agriculture

Part of speech: Noun, Masculine, Singular

Definition: Extensification

Last Updated: 29 July 2003

English: simulation tools

Welsh: offer efelychu

Status C

Subject: ICT

Part of speech: Noun, Masculine, Singular

Last Updated: 25 June 2007

English: simultaneous bilingualism

Welsh: dwyieithrwydd cydamserol

Status C

Subject: Education

Part of speech: Noun, Masculine, Singular

Definition: Simultaneous bilingualism is a form of bilingualism that takes place when a child becomes bilingual by learning two languages from birth.

Last Updated: 15 September 2016

English: sinew

Welsh: gewyn

Status C

Subject: Food

Part of speech: Noun, Masculine, Singular

Last Updated: 9 October 2008

English: sinew

Welsh: gewyn

Status A

Subject: Health

Part of speech: Noun, Masculine, Singular

Context: Lluosog: gewynnau.

Last Updated: 14 August 2013

English: sinews

Welsh: gewynnau

Status C

Subject: Food

Part of speech: Noun, Plural

Last Updated: 9 October 2008

English: Singapore

Welsh: Singapore

Status A

Subject: Place-names

Part of speech: Proper noun

Notes: Safonwyd yr enw hwn gan ddilyn yr egwyddorion a nodir yn yr erthygl 'Dynodi enwau gwladwriaethau, tiriogaethau a chenhedloedd diwladwriaeth' yn yr Arddulliadur.

Last Updated: 17 August 2021

English: Single Administrative Document

Welsh: Dogfen Weinyddu Sengl

Status C

Subject: Economic development

Part of speech: Noun, Feminine, Singular

Definition: SAD

Last Updated: 7 October 2004

English: Single Advice Fund

Welsh: Y Gronfa Gynghori Sengl

Status A

Subject: Estates and Cadw

Part of speech: Noun, Feminine, Singular

Notes: Cynllun grant gwerth ar gyfer darparu gwasanaethau gwybodaeth a chyngor am les cymdeithasol.

Last Updated: 3 October 2019

English: single aid rate

Welsh: cyfradd cymorth sengl

Status C

Subject: Agriculture

Part of speech: Noun, Feminine, Singular

Last Updated: 29 July 2003

English: Single Application form

Welsh: Ffurflen Cais Sengl

Status B

Subject: Agriculture

Part of speech: Noun, Feminine, Singular

Context: Rydym yn esbonio pwy sy'n gymwys i ymuno â'r Cynllun a sut y bydd yn gweithio, ac yn egluro ein cynnig i roi'r Cynllun ar waith gan ddefnyddio model gweithredu Taliadau Gwledig Cymru (RPW), gan adeiladu ar lwyddiant RPW Ar-lein, y Ffurfen Cais Sengl (SAF) a'r cynlluniau buddsoddi gwledig.

Last Updated: 12 March 2024

English: Single Application Rules Booklet

Welsh: Llyfryn Rheolau'r Cais Sengl

Status A

Subject: Agriculture

Part of speech: Noun, Masculine, Singular

Last Updated: 19 May 2005

English: single award

Welsh: dyfarniad sengl

Status C

Subject: Education

Part of speech: Noun, Masculine, Singular

Last Updated: 18 October 2004

TermCymru

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