noun
- A depression in the floor of the Pacific Ocean to the northeast of Japan that reaches depths of 30, 000 feet. .
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). japan trench. Retrieved September 22, 2026, from http://smartdefine.org/japan_trench/definitions/1227015 |
| Chicago | WordNet. 2010. "japan trench" http://smartdefine.org/japan_trench/definitions/1227015 (accessed September 22, 2026). |
| Harvard | WordNet 2010, japan trench, Smart Define, viewed 22 September, 2026, <http://smartdefine.org/japan_trench/definitions/1227015>. |
| MLA | WordNet. "japan trench" 23 October 2010. Web. 22 September 2026. <http://smartdefine.org/japan_trench/definitions/1227015> |