Blowhole

Quick meaning: Blowhole is a noun meaning (marine biology) The spiracle, on the top of the head, through which cetaceans breathe.

Meaning

(marine biology) The spiracle, on the top of the head, through which cetaceans breathe.

More Meanings

1. A hole in sea ice where cetaceans and pinnipeds come to breathe.
2. (geology) A vent for the escape of steam or other gas.
3. (metallurgy) An unintended cavity filled with air in a casting product.
4. (computer hardware) A vertical opening in the top of a computer case that lets hot air (primarily from the CPU heat sink) escape quickly.
5. (metallurgy, ambitransitive) To fill or be filled with air in an unintended cavity.
6. (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.

Word Forms

• blowholes
• blowholing
• blowholed

Synonyms for blowhole

Depending on context, synonyms include venthole, vent.

Related Words

Related dictionary entries include venthole, vent, spiracle, spouthole, blower, bottlenose.

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