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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
Negative symptom
A reduction or loss of usual functioning, such as reduced emotional expression, motivation or speech.
Negative temperature coefficient (NTC) thermistor
A thermistor for which resistance decreases as temperature increases.
Negative temperature coefficient thermistor
A temperature-sensitive resistor whose resistance decreases as its temperature increases.
Negative triad
Beck’s three connected patterns of negative thinking about the self, the world and the future.
Negative tropism
Growth away from a stimulus.
Neglect
An upbringing that fails to provide a child with necessary attention, protection or care.
Negotiated reading
An audience interpretation that accepts some of a product’s intended meaning but modifies or rejects other parts.
Negotiation
Discussion aimed at reaching an agreement between people with different preferences or interests, sometimes involving compromise.
Neighbour
A person towards whom someone has a responsibility to show love and care; Christians understand this responsibility as extending beyond friends or their own community.
Neighbourhood Watch
A voluntary movement in which local people work together and with the police to prevent crime and improve community safety.
Neilah
The closing service of Yom Kippur, associated with the closing of the gates of repentance.
Nembutsu
The Japanese practice of reciting or chanting the name of Amida Buddha, expressing faith in him.
Neo-colonialism
Continued economic or political dominance over an independent country, without direct colonial rule.
Neo-conservatism
A political view that stresses preserving traditional values within society's norms and values.
Neo-liberalism
A political approach favouring free-market capitalism, fewer government restrictions on business and reduced government spending.
Neonatal mortality rate
The number of deaths during the first 28 days of life per 1,000 live births.
Neonate
A newborn baby.
NEP
The New Economic Policy, introduced under Lenin, which allowed some private enterprise and allowed peasants to sell surplus produce for profit.
Nephron
A microscopic filtering unit in a kidney, consisting of Bowman’s capsule and a tubule that processes the filtrate.
NEPmen
Private traders and businesspeople who operated for profit under the New Economic Policy.
Nepotism
Giving positions or advantages to relatives because of family connections rather than suitability.
Ner Tamid
The continuously burning light in a synagogue that symbolises God’s enduring presence.
Nerve
A bundle of neurone fibres.
Nervous system
The body's rapid communication system, made from the central nervous system and the neurones that connect it to receptors and effectors.
Nervous system
The body's communication system, which receives information, processes it and coordinates responses.
Nes
A Hebrew word for a miracle, also associated with a raised banner or standard. Jewish interpretations connect these meanings: a miracle draws attention to the Almighty’s action and guides people towards faith and obedience.
Nessus
The centaur who abducts Deianira, is shot by Hercules with a Hydra-poisoned arrow, and seeks revenge by giving her his blood-soaked tunic as a supposed remedy for waning love.
Nested iteration
A loop placed inside the body of another loop.
Nested loop
A loop placed inside another loop. The inner loop completes each time the outer loop repeats.
Nested selection
A selection structure placed inside a branch of another selection structure.
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