Mariana Trench

[ mair-ee-ah-nuh trench, mar- ]

noun

1. the world’s deepest oceanic trench, a crescent-shaped depression located in the western Pacific Ocean, south and west of the Mariana Islands: site of the Challenger Deep.

Word History and Origins

Origin of Mariana Trench¹

First recorded in 1930–35; named after the Mariana Islands

Example Sentences

In 2021, the duo ventured together in a submersible to the Challenger Deep and the Sirena Deep in the Mariana Trench.

From BBC

Microplastics have been found in even the most remote corners of the Earth, such as the Mariana Trench, the deepest oceanic trench on the planet.

From Slate

A hug from Mom hadn’t fixed it, but it had pulled Cat’s heart from the bottom of the Mariana Trench to somewhere around sea level.

From Literature

These so-called microplastics are spread throughout the water column and have been found in every corner of the globe, from Mount Everest, the highest peak, to the Mariana Trench, the deepest trough.

From National Geographic

Tiny plastic flecks and specks have been spotted from the ocean's deepest point, the Mariana Trench, to the pristine reef area of the tiny, remote island republic of Palau.

From Salon