D defs.my
Entry 1 sense Webster, 1913

Coliseum

/kälˌ-əs-ē'-əm/ · Col·i·se·um · IPA /[kʰɑɫəˈsi.əm]/
01 n. The amphitheater of Vespasian at Rome, the largest in the world.
  1. 1.
    The amphitheater of Vespasian at Rome, the largest in the world.