What does normalised mean?
Normalised means brought into a standard or consistent form. The term is especially common in mathematics, statistics, computing, and data processing, where observations may be adjusted to a shared scale or expressed relative to a standard distribution. Normalisation allows values measured in different units or ranges to be compared more meaningfully. For example, exam results can be standardised before they are compared with results from another examination, while numerical data may be normalised before being used in a model. In general usage, the word describes a process that removes inconsistency or irregularity and replaces it with a uniform format. Although it can suggest technical precision, normalised is also widely used in ordinary discussions of files, forms, and systems. British English generally spells it with -s, while American English generally uses -z; both forms refer to the same process.
adjectiveReduced to, expressed in, or brought into a standard or consistent form. In mathematics and statistics, adjusted so that values are expressed on a common scale or follow a standard distribution.
- Brought into a standard, regular, or consistent form.
- Adjusted in mathematics or statistics so that values have a standard scale or distribution.
"The figures have been normalised so that they can be compared directly."
"The archive uses a normalised filing system that makes related documents easier to retrieve."
"Before modelling the data, the analyst checked that each variable had been normalised."
Normalisation is what lets unlike measurements—such as heights, temperatures, and scores—share a meaningful scale.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does normalised come from?
Normalised was formed from normalise, itself built from normal with the suffix -ise. Normal derives from Latin normalis, meaning “conforming to a rule,” from norma, meaning “rule” or “standard.” The related English noun norm therefore continues the same Latin idea of a rule or recognized standard.
Related word forms
How normalised is actually used
The form with -s is standard British spelling; American English normally uses -z. The mathematical and statistical senses are widely used in technical writing.
Easily confused with normalised
Normal describes something that conforms to an expected standard, whereas normalised describes something that has been converted into a standard form or scale.