Loading…
Loading…
Browse key terms and definitions across all GCSE subjects. Search by keyword or filter by subject and exam board.
23,110 key terms
Regular pattern
An ordered, repeating arrangement of particles in a solid.
Regular polygon
A polygon whose sides are all equal in length and whose interior angles are all equal.
Regular polygon
A flat, straight-sided shape whose sides are all equal and whose interior angles are all equal.
Regular section
A length of timber with a consistent, simple cross-sectional shape, commonly square or rectangular.
Regular solid
A solid with a simple geometric shape, such as a cuboid or cylinder, whose volume can be calculated from measurements of its dimensions.
Regulation
The use of organised rules and oversight to control how an activity is conducted.
Regulation
Rules and oversight governing media organisations and their content, including legal controls and industry or organisational standards.
Regulative principle of worship
The Reformed Christian teaching that worship should include only what God has authorised in Scripture.
Rehabilitation
Restoring a purged official’s political standing and allowing them to return to Party or government work.
Rehabilitation
Support that helps an offender change and return to a law-abiding life in society, such as education and training.
Rehabilitation
Helping an offender change their behaviour and develop the skills needed to live without committing crime.
Rehabilitation
Helping an offender change their thinking and behaviour, develop constructive skills and reduce the likelihood of further offending.
Rehabilitation
Support and interventions that help someone stop offending and build a crime-free life.
Rehat Maryada
The Sikh code of conduct, setting out religious practices and standards of behaviour, including the commitments made at initiation.
Rehearsal
Repeating information to keep it available in memory; in the multi-store model, rehearsal also enables transfer into long-term memory.
Rehydration
Consuming water to restore hydration by replacing water that has been lost.
Reich Chamber of Culture
An organisation established in 1933 to regulate cultural occupations and ensure that cultural production conformed to Nazi ideas.
Reich Church
The unified Protestant church organisation through which the Nazis attempted to bring Protestant churches under their influence, led by Reich Bishop Ludwig Müller.
Reichsmark
The German currency introduced in 1924, backed by gold and stable foreign currencies; it circulated alongside the Rentenmark at equal value.
Reichstag
Germany’s national parliament, whose elected seats reflected the strength of political parties.
Reichstag Fire Decree
An emergency order signed by President Hindenburg on 28 February 1933 that suspended civil liberties and enabled the Nazis to imprison political opponents.
Reign of God
Another name for the Kingdom of God, emphasising God’s rule rather than a geographical territory.
Re-imaging
Changing how an urban area is perceived, giving it a different image or reputation.
Reincarnation
Being born again in another body after death.
Reinforcement
The fibres or fragments held within a composite's matrix.
Reinforcement
Strengthening a material or structure by adding supporting material or features.
Reinforcement
A consequence that increases the likelihood of the behaviour it follows.
Reintegration
Helping an offender return to community life and make a positive contribution after taking responsibility and making amends.
Rejection
An immune response in which the recipient's body recognises a transplanted organ as foreign and attacks it.
Rejection
An immune response against transplanted cells or tissues recognised as foreign, which can damage the transplant.
Create a free account to keep every note you open and track your progress.