/hayd"l/ , adj.
1. of or pertaining to the greatest ocean depths, below approximately 20,000 ft. (6500 m).
2. of or pertaining to the biogeographic region of the ocean bottom below the abyssal zone.
[ 1955-60; HAD(ES) + -AL 1 ]
/hayd"l/ , adj.
1. of or pertaining to the greatest ocean depths, below approximately 20,000 ft. (6500 m).
2. of or pertaining to the biogeographic region of the ocean bottom below the abyssal zone.
[ 1955-60; HAD(ES) + -AL 1 ]
Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012