Definition of blowhole Blowhole

/blowˈhowˌl/ - [blowhowl] - blow•hole

We found 13 definitions of blowhole from 5 different sources.

What does blowhole mean?

Noun Plural: blowholes
blowhole - the spiracle of a cetacean located far back on the skull
		spiracle a breathing orifice
blowhole - a hole for the escape of gas or air
		vent, venthole, vent-hole
		hole an opening deliberately made in or through something
		air duct, air passage, airway a duct that provides ventilation (as in mines)

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blowhole (Noun)
The spiracle, on the top of the head, through which cetaceans breath.
blowhole (Noun)
A vent for the escape of gas.
blowhole (Noun)
A top-facing opening to a cavity in the ground very near an ocean's shore, that leads to a marine cave from which wave water and/or bursts of air are expelled.
blowhole (Noun)
An unintended cavity filled with air in a casting product .
blowhole (Noun)
A vertical opening in the top of computer cases, that let hot air, primarily from the CPU heat sink , escape quickly.

blowhole (n.)
A cavern in a cliff, at the water level, opening to the air at its farther extremity, so that the waters rush in with each surge and rise in a lofty jet from the extremity.
blowhole (n.)
A nostril or spiracle in the top of the head of a whale or other cetacean.
blowhole (n.)
A hole in the ice to which whales, seals, etc., come to breathe.
blowhole (n.)
An air hole in a casting.