general | April 07, 2026 Definitions of arcosolium - OneLook Definitions from Wiktionary (arcosolium)▸ noun: (architecture) A tomb in an arched recess in a wall.socle, arcade, sarcophagus, arcature, altar tomb, stele, colonnade, hypostyle, solidum, cell, more...▸ Words similar to arcosolium▸ Usage examples for arcosolium▸ Idioms related to arcosolium▸ Civic discussion about arcosolium (New!)▸ Popular adjectives describing arcosolium▸ Words that often appear near arcosolium▸ Rhymes of arcosolium▸ Invented words related to arcosolium