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ENGLISH DICTIONARY
Blow hole
/ˈbləʊhəʊl/ · noun
Meaning
(marine biology) The spiracle, on the top of the head, through which cetaceans breathe..
Definitions by Sense
(marine biology) The spiracle, on the top of the head, through which cetaceans breathe.
A hole in sea ice where cetaceans and pinnipeds come to breathe.
(geology) A top-facing opening to a cavity in the ground very near an ocean's shore, leading to a marine cave from which wave water or bursts of air are expelled.
(geology) A vent for the escape of steam or other gas.
(metallurgy) An unintended cavity filled with air in a casting product.
(computer hardware) A vertical opening in the top of a computer case that lets hot air (primarily from the CPU heat sink) escape quickly.
(metallurgy, ambitransitive) To fill or be filled with air in an unintended cavity.