blue hole (0 synonym found)

We don't have any synonyms for blue hole yet.

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Definition of blue hole:

(n) : A submarine cave or sinkhole, a roughly circular, steep-walled depression that is typically anoxic below a certain depth.
Definition of blue hole:

(n) : A submarine cave or sinkhole, a roughly circular, steep-walled depression that is typically anoxic below a certain depth.
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