Challenger Deep

[ chal-in-jer deep ]

  1. the deepest known portion of seafloor in the world, located in the Pacific Ocean at the southern end of the Mariana Trench at a depth of 35,840 feet (10,924 meters).: Compare Horizon Deep, Emden Deep.

Origin of Challenger Deep

First recorded in 1880–85; after the British Royal Navy survey ship H.M.S. Challenger, whose expedition of 1872–1876 made the first recordings of its depth

Words Nearby Challenger Deep Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use Challenger Deep in a sentence