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Meaning of bathyal

bath•y•al

Pronunciation: (bath'ē-ul), [key]
— adj. Oceanog.
  1. of or pertaining to the biogeographic region of the ocean bottom between the sublittoral and abyssal zones: from depths of approximately 660 to 13,000 ft. (200 to 4000 m).
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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