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Definition of Blue hole
1. Noun. A submarine cave or sinkhole, a roughly circular, steep-walled depression that is typically anoxic below a certain depth. ¹
¹ Source: wiktionary.com
Lexicographical Neighbors of Blue Hole
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1. Noun. A submarine cave or sinkhole, a roughly circular, steep-walled depression that is typically anoxic below a certain depth. ¹
¹ Source: wiktionary.com