TermCymru

Results are displayed in Welsh alphabetical order A-Y
Welsh: Deddf Plant (Gwarchodaeth Gydradd rhag Ymosodiad) (Yr Alban)
English: Children (Equal Protection from Assault) (Scotland) Act
Status B
Subject: Titles of legislation
Part of speech: Noun, Feminine, Singular
Notes: Teitl cwrteisi ar ddarn o ddeddfwriaeth sydd ar gael yn Saesneg yn unig.
Last updated: 25 February 2021
Welsh: ymosodiad
English: assault
Status B
Subject: Justice and order
Part of speech: Noun, Masculine, Singular
Last updated: 2 August 2012
Welsh: Ymosodiad Arfog Difaol gan Derfysgwyr
English: Marauding Terrorist Firearms Attack
Status B
Subject: Justice and order
Part of speech: Noun, Masculine, Singular
Plural: Ymosodiadau Arfog Difaol gan Derfysgwyr
Definition: A Marauding Terrorist Firearms Attack, which refers to a terrorist attack involving the use of firearms in a way designed to inflict large numbers of casualties. This type of incident may typically involve (in addition to the direct impact of firearms) a combination of explosions and deliberately caused fires resulting in a variable number of casualties and fatalities at simultaneous locations.
Notes: Defnyddir yr acronym MFTA yn y ddwy iaith
Last updated: 11 May 2017
Welsh: ymosodiad atal gwasanaeth
English: DoS
Status B
Subject: ICT
Part of speech: Noun, Masculine, Singular
Definition: Denial of service attack. An intentional overload of requests to a Web site or online service aimed at crashing the target's system.
Last updated: 18 February 2009
Welsh: ymosodiad atal gwasanaeth
English: denial of service attack
Status B
Subject: ICT
Part of speech: Noun, Feminine, Singular
Last updated: 14 May 2012
Welsh: ymosodiad Atal Gwasanaeth Gwasgaredig
English: Distributed Denial of Service attack
Status B
Subject: ICT
Part of speech: Noun, Masculine, Singular
Plural: ymosodiadau atal gwasanaeth gwasgaredig
Definition: Math o ymosodiad seiber lle caiff gwasanaeth ar-lein ei orlwytho gan nifer fawr o geisiadau ar yr un pryd, gan ei gwneud yn amhosibl i ddefnyddwyr cyfreithlon gael mynediad.
Notes: Mae'r ffurf fer DDoS attack yn gyffredin yn Saesneg.
Last updated: 13 November 2025
Welsh: ymosodiad Atal Gwasanaeth Gwasgaredig
English: DDoS attack
Status B
Subject: ICT
Part of speech: Noun, Masculine, Singular
Plural: ymosodiadau atal gwasanaeth gwasgaredig
Definition: Math o ymosodiad seiber lle caiff gwasanaeth ar-lein ei orlwytho gan nifer fawr o geisiadau ar yr un pryd, gan ei gwneud yn amhosibl i ddefnyddwyr cyfreithlon gael mynediad.
Notes: Dyma’r ffurf fer ar y term Saesneg ‘Distributed Denial of Service attack’.
Last updated: 13 November 2025
Welsh: ymosodiad cyffredin
English: common assault
Status B
Subject: Justice and order
Part of speech: Noun, Masculine, Singular
Last updated: 6 August 2012
Welsh: ymosodiad di-drais
English: passive attack
Status B
Subject: Justice and order
Part of speech: Noun, Masculine, Singular
Last updated: 30 August 2012
Welsh: ymosodiad gan derfysgwyr
English: terrorist attack
Status C
Subject: General
Part of speech: Noun, Masculine, Singular
Last updated: 28 February 2005
Welsh: ymosodiad gan Rwsia
English: Russian invasion
Status B
Subject: Politics
Part of speech: Noun, Masculine, Singular
Plural: ymosodiadau gan Rwsia
Context: Mae Llywodraeth Cymru yn cefnogi cyflogi pobl sydd wedi'u dadleoli o Wcráin yn dilyn yr ymosodiad gan Rwsia.
Notes: Yng nghyd-destun yr ymateb i sefyllfa Wcráin.
Last updated: 26 January 2023
Welsh: ymosodiad gwaethygedig ar sail hil neu grefydd
English: racially or religiously aggravated assault
Status B
Subject: Justice and order
Part of speech: Noun, Masculine, Singular
Last updated: 1 August 2012
Welsh: ymosodiad person-yn-y-canol
English: man-in-the-middle attack
Status B
Subject: ICT
Part of speech: Noun, Masculine, Singular
Plural: ymosodiadau person-yn-y-canol
Definition: Math o ymosodiad seiber lle mae ymosodwr yn ymyrryd â chyfathrebiad rhwng dau barti gan wneud i’r ddau gredu eu bod yn cyfathrebu’n uniongyrchol â’i gilydd, tra bod ymosodwr yn gallu darllen, addasu neu gipio'r negeseuon rhyngddynt.
Notes: Cymharer â'r term interception attack / ymosodiad rhyng-gipio.
Last updated: 13 November 2025
Welsh: ymosodiad rhyng-gipio
English: interception attack
Status B
Subject: ICT
Part of speech: Noun, Masculine, Singular
Plural: ymosodiadau rhyng-gipio
Definition: Math o ymosodiad seiber lle mae ymosodwr yn gallu darllen a chipio cyfathrebiadau rhwng dau barti.
Notes: Cymharer â'r term man-in-the-middle attack / ymosodiad person-yn-y-canol.
Last updated: 13 November 2025
Welsh: ymosodiad sbam
English: spam attack
Status C
Subject: ICT
Part of speech: Noun, Masculine, Singular
Last updated: 31 December 2008
Welsh: ymosodiad seiber
English: cyber attack
Status C
Subject: ICT
Part of speech: Noun, Masculine, Singular
Plural: ymosodiadau seiber
Context: Rydym ar ddeall y ceir tua 60,000 o ymosodiadau seiber bob wythnos yn y DU. Ceir bygythiadau gan seiberdroseddwyr, hacwyr ymgyrchu a hacwyr maleisus dibrofiad, yn ogystal â bygythiadau gan wladwriaethau a bygythiadau a noddir gan wladwriaethau.
Last updated: 11 October 2016