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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
Local area network (LAN)
A network that usually covers a relatively small geographical area and is often owned and managed by one person or organisation.
Local biodiversity
The variety of species within a particular geographical area, such as a pond or nature reserve.
Local church
A Christian congregation serving a particular community, and the place where it gathers for worship and other activities.
Local community
The individuals and organisations that live or operate in the area around a business.
Local council
An organisation responsible for local government in an area, representing the community and providing public services.
Local Education Authority
A council body responsible for organising education locally. The 1902 Education Act transferred responsibility from School Boards to these authorities.
Local food
Food produced close to where it is sold or eaten.
Local government
The administration of laws, public order and other affairs within a particular area, rather than directly by central government.
Local government
Elected councils that make decisions and provide public services for communities within a particular local area.
Local identity
A sense of belonging to a particular place or community, often connected to shared history, language, traditions and values.
Local identity
A sense of belonging to a particular neighbourhood, town or city.
Local importance
The importance of a place to its surrounding community or area.
Localisation of function
The principle that particular brain areas are associated with particular functions.
Locally produced food
Food produced near the place where it is bought or eaten.
Local maximum
A point whose y-coordinate is greater than those of nearby points on either side.
Local minimum
A point whose y-coordinate is smaller than those of nearby points on either side.
Local scale
The scale of a neighbourhood, town or community, rather than a whole country.
Local source
Historical evidence concerning a particular place or community, such as a borough council’s records or a resident’s diary.
Local sourcing
Obtaining food from producers close to where it will be sold or consumed.
Local storage
Storage of data on a device attached to or within the user's computer, such as an internal SSD or an external hard drive.
Local variable
A variable whose scope is restricted to the subroutine in which it is defined.
Locarno Pact
The 1925 agreements through which Germany accepted its western borders and improved relations with its European neighbours.
Locarno treaties
The 1925 agreements through which Germany accepted its western borders and participating countries sought to improve European security and peaceful relations.
Locating agent
A chemical used to make otherwise colourless spots visible on a chromatogram.
Locating agent
A chemical used after chromatography to make the positions of colourless substances visible.
Location
The position of a site in relation to its surroundings, including landscape, settlements and routes.
Location shooting
Filming in an actual place rather than on a purpose-built studio set.
Lochos
A company within the Spartan army; its plural is lochoi, and its commander was a lochagos.
Lock-and-key hypothesis
The idea that only a substrate with a complementary shape can fit an enzyme's active site, like a particular key fitting a lock.
Lock and key hypothesis
A simplified model of enzyme action in which a substrate fits an enzyme’s active site like a key fits a lock.
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