bathyal

[ bath-ee-uhl ]

adjective

, Oceanography.

1. of or relating to the biogeographic region of the ocean bottom between the sublittoral and abyssal zones: from depths of approximately 660 to 13,000 feet (200 to 4,000 meters).

bathyal

/ ˈbæθɪəl /

adjective

1. denoting or relating to an ocean depth of between 200 and 2000 metres (about 100 and 1000 fathoms), corresponding to the continental slope

bathyal

/ băth′ē-əl /

1. Relating to the region of the ocean bottom between the sublittoral and abyssal zones, from depths of approximately 200 to 2,000 m (656 to 6,560 ft).

Word History and Origins

Origin of bathyal¹

First recorded in 1925–30; bathy- + -al ¹