Localised

Localised is the British English past tense and past participle of the verb localise, and also the adjective form describing something confined to a particular area or tailored to a locale. In general use, to localise means to restrict or adapt something to a locality—such as language, culture, or market conditions.

In medicine, a localised infection or lesion remains confined to one area rather than spreading systemically. In technology and media, localisation refers to adapting software, websites, or publications for a specific locale, including translation, cultural conventions, and formatting.

In scientific and mathematical contexts, localization denotes a formal process that focuses attention on a subset of interest; in British English, the verb form localised is used in sentences like “the ring was localised at the multiplicative set.” The term has American English counterparts, such as localized, localization, and localize.

Etymology traces localised to the adjective localis with the suffix -ise (and -ed for past forms), stemming from Latin locality. Variants include localisation (British) versus localization (American). The term spans everyday usage, medicine, linguistics and computing, and specialized mathematical and scientific fields, where it often denotes restricting attention to a locale or making something suitable for a specific locality.