1. The circular ring in which Sumo wrestlers compete

Type of: ring

• arthro-
• arthrocentesis
• arthrodesis
• arthrogram
• arthrography
• arthromere
• arthromeric
• arthropathy
• arthroplasty
• arthropod
• arthropod family
• arthropod genus
• Arthropoda
• arthropodal
• arthropodan
• arthropodous
• Arthropteris
• arthroscope
• arthroscopy
• arthrosis
• arthrospore
• arthrosporic
• arthrosporous
• Arthur
• Arthur Ashe