abyssal: Meaning and Definition of
Pronunciation: (u-bis'ul), [key]
- of or like an abyss; immeasurable; unfathomable.
- of or pertaining to the biogeographic zone of the ocean bottom between the bathyal and hadal zones: from depths of approximately 13,000 to 21,000 ft. (4000 to 6500 m).
- abyssal (Thesaurus)