[soo-moh] 
| a form of wrestling in Japan in which a contestant wins by forcing his opponent out of the ring or by causing him to touch the ground with any part of his body other than the soles of his feet, contestants usually being men of great height and weight. |
| su·mo (sōō'mō) n. A Japanese form of wrestling in which a fighter loses if forced from the ring or if any part of his body except the soles of his feet touches the ground. [Japanese sumō : su, mutually + mō, to rush at.] |