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.

Origin of Mariana Trench

1
First recorded in 1930–35; named after the Mariana Islands
  • Also called Mar·i·an·as Trench [mair-ee-ah-nuhz trench, mar-] /ˈmɛər iˌɑ nəz ˈtrɛntʃ, ˈmær-/ .

Words Nearby Mariana Trench

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024

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