Mariana Trench

geographical name

Definition of Mariana Trench

  1. sea floor trench in the Pacific extending from southeast of Guam to northwest of the Mariana Islands and containing the deepest known depression on Earth, at a depth of 36,198 feet (11,033 meters)


Seen and Heard

What made you want to look up Mariana Trench? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

clearly seen through or understood

Get Word of the Day daily email!