abyssal: Meaning and Definition of

a•byss•al

Pronunciation: (u-bis'ul), [key]

— adj.

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).

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

See also:

abyssal (Thesaurus)

abyss Abyssinia

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