Dictionary.com
Thesaurus.com

hadopelagic zone

American  
[hay-duh-puh-la-jik zohn] / ˌheɪ də pəˈlæ dʒɪk ˈzoʊn /

noun

plural

hadopelagic zones

  1. hadal zone.

hadopelagic zone Scientific  
/ hā′də-pə-lăj′ĭk /

  1. The bottommost layer of the oceanic zone, lying below the abyssopelagic zone at depths greater than about 6,000 m (19,680 ft).

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.