/ Dictionary / Index A archibenthos: Meaning and Definition of Find definitions for: ar•chi•ben•thos Pronunciation: (är"ku-ben'thos), [key] — n. the ocean bottom between the littoral and abyssal zones: from depths of approximately 200 ft. (60 m) to 3300 ft. (1000 m). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Archibald archiblast Related Content Daily Word Quiz: philtrum Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language