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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
Deianira
Hercules’ wife, who unknowingly sends him a poisoned shirt because she believes it will restore his love.
Deictic reference
Language whose meaning depends on the situation, such as 'here', 'today' and 'this hall'. In a speech, it helps establish where and when the speaker is addressing listeners.
Deification
The presentation or treatment of a person as a god.
Deindividuation
Reduced awareness of oneself as a separate individual and a reduced sense of personal responsibility, which can occur when someone is part of a crowd.
De-industrialisation
The reduction or dismantling of a country's industrial capacity.
De-industrialisation
The decline in the importance of manufacturing within an economy, particularly its share of employment.
Deindustrialisation
The decline of manufacturing industry, involving factory closures and the loss of industrial jobs.
Deindustrialisation
The decline of manufacturing and other industrial activity in an area, often involving factory closures and job losses.
De-inking
The removal of printing ink from recovered paper during recycling.
Deionised water
Water from which dissolved ions have been removed.
Deionised water
Water from which dissolved ions have been removed, used to avoid interference in chemical analysis.
Deism
The belief that God created the world but does not continually intervene in its events.
Deity
A god or goddess, understood as a divine being or form through which the divine is encountered.
Dei Verbum
A Catholic Church document whose title means ‘Word of God’; Chapter 3 explains biblical inspiration and interpretation.
De jure segregation
Racial separation imposed by law, rather than only by people's practices or economic circumstances.
De-kulakisation
Stalin’s campaign to eliminate kulaks as a class through confiscation, removal and repression.
Delamination
The separation of layers in a laminated material.
Delay
A programmed wait before execution moves to the next instruction.
Delayed gratification
Resisting an immediate reward in order to obtain a larger reward later.
Delayed point-of-view shot
An editing pattern that shows a character’s reaction before revealing what the character is looking at.
Delayed recall
Remembering information after an interval rather than immediately after presentation.
Delayed revelation
Withholding information until a later point in a text, often to create suspense or curiosity.
Delayering
The removal of one or more levels of hierarchy from an organisation.
Delegation
Entrusting tasks to another person while retaining overall responsibility and authority.
Delegation
Giving a subordinate responsibility for a task and the authority needed to carry it out.
DELETE FROM
An SQL command that removes rows from a table.
Delhi Sultanate
A state governed by a sultan from Delhi. Babur defeated its last ruler, Ibrahim Lodi, in 1526.
Delian League
An alliance led by Athens to campaign against Persia, whose treasury and meetings were originally located on Delos. Members contributed money or ships.
Delian League
An alliance founded after the Persian Wars, whose members contributed ships and soldiers or money to expeditions led by Athens. It gradually became an Athenian empire.
Deliberation
Careful consideration of an issue, including its evidence, competing arguments and possible consequences, before reaching a decision.
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