- the largest administrative subdivision of a department
- a municipal subdivision, as of Paris
Origin of arrondissementFrench from arrondir, to make round
- The chief administrative subdivision of a department in France.
- A municipal subdivision in some large French cities.
Origin of arrondissementFrench from Old French rounded projection on a wall from arrondir arrondiss- to round out a to ( from Latin ad- ; see ad- . ) rondir to make round ( from rond round ; see round 1. )