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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
Toughness
The ability to absorb energy and deform without fracturing.
Tourism
Travel away from home for leisure, involving at least one overnight stay.
Tournament
An organised occasion featuring contests between knights, used for military training, entertainment and displays of status.
Tower shield
A large, tall shield whose outline resembles a tower, providing extensive bodily coverage.
Town marshal
A local law officer responsible for maintaining order in a town.
Township
A South African urban residential area shaped by the history of racial segregation. In Tsotsi, township life includes poverty and basic housing, but also community and care.
Town watchman
A person used in a town to watch for criminal activity.
Toxic
Poisonous; able to cause serious harm or death if a sufficient amount enters the body.
Toxic
Describes a poisonous substance that can cause serious harm or death.
Toxic gas
A poisonous gas that harms living organisms when inhaled.
Toxicity
The extent to which a substance can harm the body.
Toxicity
The extent to which a substance causes harm to cells, tissues or an organism.
Toxicity
The ability of a substance to harm living organisms.
Toxic masculinity
Harmful expectations or behaviours associated with masculinity, such as aggression, domination and entitlement; not masculinity or men as a whole.
Toxin
A harmful substance produced by some pathogens that damages cells or tissues.
Toxin
A poisonous substance produced by a pathogen that can damage cells or tissues.
Toxin
A poisonous substance produced by an organism; some bacteria produce toxins that cause food poisoning.
Traceability
The ability to follow a product or ingredient through its supply chain back to where it was produced.
Trace element
A mineral needed by the body in particularly small quantities. Iodine and fluoride are examples.
Trace table
A table used to record changing variable values and outputs while following an algorithm step by step.
Trachea
The main tube, also called the windpipe, that carries air from the mouth or nose towards the bronchi.
Tracing
Working through an algorithm one instruction at a time, recording changing values and outputs.
Tracing paper
Smooth, very translucent paper that allows an image underneath to be seen and copied.
Track
The route followed by the centre of a tropical cyclone as it moves.
Tracking shot
A shot made while the camera moves through space, for example alongside a character or vehicle.
Traction
Transportation in which large stones and boulders roll along the river bed.
Trade
The exchange of goods and services between people, businesses or countries.
Trade
Buying and selling goods; in the play, overseas trade supplies Antonio's wealth but exposes it to the dangers of sea voyages.
Trade and Cooperation Agreement
The agreement reached in December 2020 which provides a framework for UK–EU trade and cooperation following Brexit.
Trade barrier
A measure that makes trade between countries more difficult, such as a tariff or a restriction on imports.
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