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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
Multi-factor authentication
Authentication that requires evidence from more than one type of factor, such as a password and possession of a registered phone.
Multi-faith society
A society in which people belonging to different religions live alongside one another.
Multilateral aid
Aid provided through an international organisation using contributions from several countries.
Multilateral disarmament
The reduction or removal of weapons through agreement between several countries.
Multi-member constituency
An electoral area that elects more than one representative.
Multinational
A business with operations, such as factories, offices or shops, in more than one country.
Multinational company
A large business with branches in several countries.
Multinational company
A business with operations, such as production or sales, in more than one country.
Multinational company (MNC)
A business that owns or controls operations in more than one country, also called a transnational corporation (TNC).
Multinational corporation
A business that operates in more than one country.
Multiple
A unit larger than the unprefixed unit, formed using a multiplier greater than one, such as a kilometre.
Multiple
A number obtained by multiplying a given whole number by an integer.
Multiple alleles
The presence of more than two possible alleles of one gene in a population, although each diploid individual carries only two.
Multiple bar chart
A chart with bars placed side by side within each category so that two or more groups can be compared.
Multiple bar chart
A bar chart with several bars side by side for each category, comparing more than two data sets.
Multiple birth
The birth of two or more babies from one pregnancy, such as twins or triplets.
Multiple identities
The different, overlapping identities a person holds at the same time, such as a national identity, a religious identity and membership of a local community.
Multiple of π
A number multiplied by π, such as 4π or π/2.
Multiple of k
A number that can be written as , where is an integer.
Multiple pregnancy
A pregnancy in which more than one baby develops, such as twins or triplets.
Multiplex
A cinema containing several screens, allowing different films to be shown at the same time.
Multiplicative relationship
A relationship in which one quantity is found by multiplying another by a fixed number.
Multiplier
A number used to multiply an original amount to obtain a new amount. For example, a multiplier of 1.20 increases an amount by 20%.
Multiplier
The number used to multiply one quantity to obtain another.
Multiplier (coefficient)
A number written before a chemical formula that multiplies every atom in that formula.
Multiplier effect
The process through which an initial investment creates further jobs and income as businesses buy supplies and workers spend their wages.
Multipotent
Able to differentiate into a restricted range of related cell types.
Multi-racial society
A society containing established communities of people from different racial and ethnic backgrounds.
Multistep calculation
A calculation in which the result of one operation is used in a later operation.
Multi-store model
An explanation of memory involving separate sensory, short-term and long-term stores, with information moving between them.
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