1. a group or division of ten, especially a military unit of ten soldiers in ancient Rome
Usage: historical; often used in the context of Roman military organization

Examples

• The Roman army was organized into centuries, each composed of ten decuries.
• A decury served as the smallest tactical unit in the Roman legions.
• The commander divided his troops into decuries for easier management.
• Each decury was led by a decurion, a junior officer.
• The decury system allowed for efficient organization of large military forces.