Horizon Deep

[ huh-rahy-zuhn deep ]

  1. the second-deepest known portion of seafloor in the world, located in the South Pacific Ocean’s Tonga Trench at a depth of 35,509 feet (10,823 meters).: Compare Challenger Deep, Emden Deep.

Origin of Horizon Deep

First recorded in 1950–55; named after the research vessel Horizon of the Scripps Institution of Oceanography, which discovered the deep in 1952

Words Nearby Horizon Deep

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023