Noun: sumo soo-mow
- A Japanese form of wrestling; you lose if you are forced out of a small ring or if any part of your body (other than your feet) touches the ground
"The sumo match ended quickly when one wrestler pushed his opponent out of the ring"
Derived forms: sumos
Type of: grappling, rassling [N. Amer, informal], sport, wrestling
Encyclopedia: Sumo