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Definition of Oceanic abyss
1. Noun. A long steep-sided depression in the ocean floor.
Exact synonyms: Deep, Trench
Specialized synonyms: Atacama Trench, Bougainville Trench, Japan Trench, Nares Deep
Generic synonyms: Depression, Natural Depression
Specialized synonyms: Atacama Trench, Bougainville Trench, Japan Trench, Nares Deep
Generic synonyms: Depression, Natural Depression
Definition of Oceanic abyss
1. Noun. A long, deep depression or trench in the ocean floor ¹
¹ Source: wiktionary.com