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
Estimate
An approximate answer found using simplified or rounded numbers.
Estimate
A value inferred from sample data and used as an approximate value for the population.
Estimate
An approximate value for an unknown population characteristic, obtained using available data.
Estimate
An approximate result, often calculated by rounding numbers before carrying out the calculation.
Estimated average requirement
The estimated average requirement for a population group: approximately half need less and half need more.
Estimated Average Requirement (EAR)
The estimated average requirement of a population group. For energy, some people will need less and others more.
Estimated line of best fit
A line positioned by eye to follow the overall relationship, with points and their distances from the line roughly balanced on either side.
Estimated line of best fit
A straight line drawn to represent the overall trend of the points on a scatter graph.
Estimation
An approximate value based on observations or measurements, used when an exact value is unnecessary or cannot be obtained reliably.
Estrangement
Separation or loss of closeness between people who previously had a family or personal relationship.
Estuary
The tidal mouth of a river, where river water meets and mixes with seawater.
E-tailer
A business that sells goods to consumers online.
Etchant
A chemical that removes exposed, unprotected material during etching. Ferric chloride can be used to remove unwanted copper from a PCB.
Etching
Removing exposed material using a chemical solution; in PCB manufacture, it removes unwanted copper.
Eternal
Without beginning or end; not limited by time.
Eternal life
Life with God that continues beyond death; the rich man asks Jesus how he can inherit it.
Eternal recurrence
The idea that life or events recur. Ouspensky’s thinking encouraged Priestley to explore whether people could learn from repeated experiences and change.
E-textile
A textile with electronic components or circuits integrated into it.
Ethanol
The alcohol produced by anaerobic respiration in plant and yeast cells.
Ethene
A gaseous plant hormone that controls fruit ripening.
Ethernet
A family of protocols for transferring data over a wired local area network.
Ethical argument
An argument about whether an action is right, wrong or fair.
Ethical behaviour
Business behaviour that stakeholders consider fair and honest, reflecting judgements about what is morally right.
Ethical belief
A belief about what is right or wrong that can influence choices, such as concern for animal welfare or fair treatment of food producers.
Ethical code of practice
A set of principles intended to guide the behaviour and decisions of people within a business.
Ethical consideration
A question about what ought to be done, based on values, rights, responsibilities and ideas of acceptable treatment.
Ethical consideration
An issue concerning the protection and fair treatment of research participants, including informed consent, confidentiality, withdrawal and protection from harm.
Ethical considerations
Issues concerning the rights, welfare and treatment of people involved in research.
Ethical consumerism
Choosing goods and services with consideration for their effects on people, livelihoods and the environment.
Ethical decision
A judgement about what is morally right or wrong and how a person should act.
Create a free account to keep every note you open and track your progress.