The Collaborative International Dictionary of English v.0.48:
deep-water \deep-water\ adj. 1. having waters of great depth; as, a deep-water port. [WordNet 1.5] 2. carried on in waters of great depth. Syn: deep-sea. [PJC]WordNet (r) 3.0 (2006):
deep-water adj 1: of or carried on in waters of great depth; "a deep-water port"