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oceanic abyss

DEFINITIONS OF: oceanic abyss

1

n a long steep-sided depression in the ocean floor

Synonyms:
deep, trench
Examples:
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Atacama Trench
a depression in the floor of the Pacific Ocean off the coast of Chile
Bougainville Trench
a depression in the floor of the Pacific Ocean between New Guinea and the Solomon Islands
Japan Trench
a depression in the floor of the Pacific Ocean to the northeast of Japan that reaches depths of 30,000 feet
Nares Deep
a depression in the floor of the Atlantic Ocean to the north of Haiti and Puerto Rico
Type of:
depression, natural depression
a sunken or depressed geological formation
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