indiction

• 名词，指古罗马及后世中世纪王国使用的15年为一周期的纪年单位，也指该周期本身。

A noun referring to a 15-year cycle used as a chronological unit in ancient Rome and later adopted in some medieval kingdoms.

1. Chronological cycleC2formal

   A 15-year cycle used as a chronological unit in ancient Rome and later adopted in some medieval kingdoms for dating documents and events.

   纪年

   • The indiction cycle was used to date legal documents in the Byzantine Empire.
   • Historians often refer to the indiction year when studying medieval charters.
   • The concept of indiction originated in ancient Roman tax assessment periods.