The Collaborative International Dictionary of English v.0.48:
oceangoing \oceangoing\ adj. capable of crossing an ocean; used on the high seas; -- used mostly of ships; as, oceangoing vessels. Syn: seafaring, seagoing. [WordNet 1.5]WordNet (r) 3.0 (2006):
oceangoing adj 1: used on the high seas; "seafaring vessels" [syn: oceangoing, seafaring, seagoing]