Sea, ocean, open sea.

A concept that involves the placement of long-lived radioactive waste, often spent nuclear fuel, in rooms excavated deep within stable, low-permeability bedrock

(idiomatic) to introduce a person to a new situation without adequately preparing him or her.

plural of deep-sea prawn

a species of shrimp found in cold parts of the Atlantic and Pacific Oceans, Pandalus borealis.

Deep-fried.

plural of deep-fat fryer

(surgery) A neurosurgical procedure involving the implantation of a medical device called a neurostimulator which sends electrical impulses, through implanted electrodes, to specific parts of the brain for the treatment of movement and affective disorders

Alternative form of deep-fat-fry

Synonym of deep-fry