1. a cycle of fifteen years used in ancient Rome for tax assessment and later adopted by the Christian church for dating purposes
Usage: historical
2. a particular year in such a fifteen-year cycle
Usage: historical

Examples

• The document was dated according to the indiction system used by the Byzantine Empire.
• Historians use the indiction to help date medieval manuscripts.
• The tax records were organized by indiction cycles.
• This charter was written in the fifth year of the indiction.
• Medieval scribes often included the indiction year in their dating formulas.
• The indiction system provided a standardized way to track years across different regions.