1. to convert (a system, currency, or measurement) to a decimal basis
Usage: chiefly British spelling; American English uses 'decimalize'; often used in historical context of currency reform

Examples

• The United Kingdom decimalised its currency in 1971, replacing pounds, shillings, and pence with a decimal system.
• Many countries decimalised their measurement systems to align with the metric standard.
• The government decided to decimalise the old imperial weights and measures.
• Australia decimalised its currency in 1966, introducing the dollar and cent.
• Schools taught students how to decimalise fractions in mathematics class.