Of or pertaining to the depths of the ocean; of the open waters of the abyssal zone.

(literary theory) Self-reflection or introspection in a literary or other artistic work; the representation of the whole work embedded in a work.

plural of abyss

a large expanse of very flat and smooth ocean floor, usually found at depths of 4,600 to 5,500 meters (15,000 to 18,000 feet).

Any fish that lives below a depth of 2000 meters.

plural of abyme

plural of abyssomicin

(medicine) Any of a class of polyketide antibiotics, having a spirotetronic tricyclic subunit in their structure, derived from certain marine organisms.

Resembling or characteristic of an abyss.

(uncommon) Abysmal; like an abyss.