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Browse key terms and definitions across all GCSE subjects. Search by keyword or filter by subject and exam board.
23,110 key terms
Anti-static property
Resistance to the build-up of static electrical charge.
Antithesis
A contrast between opposing ideas, often expressed through a balanced sentence pattern.
Antithesis
The placing of contrasting ideas close together to emphasise their opposition, often using balanced wording.
Antitoxin
An antibody that neutralises a particular toxin, such as the toxin produced by diphtheria bacteria.
Antitoxin
A protein produced by lymphocytes that binds to and neutralises a particular toxin.
Antitoxin
A protein produced by white blood cells that neutralises a toxin produced by a pathogen.
Antiviral
A medicine that interferes with the reproduction of viruses inside host cells.
Antiviral
A medicine that slows or prevents the reproduction of viruses.
Antyeshti
Hindu last rites, normally involving cremation.
Anxiety
Feelings of worry, nervousness or unease; persistent anxiety can interfere with everyday life.
ANZAC
The Australian and New Zealand Army Corps, whose troops fought at Gallipoli.
AO1
The assessment objective rewarding understanding, an informed personal response and a critical style supported by textual references.
AO1
The reading assessment objective that includes identifying and interpreting explicit and implicit information and ideas.
AO1
The assessment objective requiring knowledge and understanding of the theoretical framework of media, and of media contexts and their influence on products and processes.
AO1
The assessment objective rewarding knowledge and understanding of elements of film.
AO2
The assessment objective rewarding analysis of how a writer’s language, form and structure create meanings and effects, using relevant terminology.
AO2
The assessment objective concerned with explaining and analysing how language and structure create effects and influence readers, using relevant terminology.
AO2
The assessment objective rewarding the application of knowledge and understanding, including analysis of films.
AO3
The assessment objective rewarding understanding of the relationship between a text and the contexts in which it was written.
AO4
The assessment objective rewarding accurate spelling and punctuation, and vocabulary and sentence structures that communicate meaning effectively.
AO4
The assessment objective that rewards critical evaluation of texts supported by appropriate textual references.
AO5
The assessment objective rewarding effective, imaginative communication suited to the task, purpose and audience, together with coherent organisation.
AO6
The assessment objective rewarding accurate spelling, punctuation and grammar, alongside vocabulary and sentence structures used for clarity and effect.
Aorta
The main artery carrying oxygenated blood from the left ventricle to the body.
Apadana
The great audience hall at Persepolis, begun under Darius I and completed under Xerxes I, where the king could receive large gatherings.
Apartheid
South Africa’s system of legally enforced racial segregation and white minority rule.
Apartheid
The system of racial segregation and white minority rule imposed in South Africa, which restricted people’s rights, opportunities and places of residence according to racial classifications.
Apartheid
The former system of legally enforced racial segregation and discrimination in South Africa that denied Black South Africans equal rights.
Apartheid
South Africa’s system of institutionalised racial segregation and white minority rule, which denied the Black majority equal rights and ended in the early 1990s.
Apathy
A lack of interest or concern. Duffy questions the public’s indifference towards suffering that does not directly affect their lives.
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