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Blowhole

//ˈbləʊhəʊl// noun, verb

Definitions

Noun
  1. 1
    The spiracle, on the top of the head, through which cetaceans breathe.
  2. 2
    a hole for the escape of gas or air wordnet
  3. 3
    A hole in sea ice where cetaceans and pinnipeds come to breathe.
  4. 4
    the spiracle of a cetacean located far back on the skull wordnet
  5. 5
    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.
Show 3 more definitions
  1. 6
    A vent for the escape of steam or other gas.
  2. 7
    An unintended cavity filled with air in a casting product.
  3. 8
    A vertical opening in the top of a computer case that lets hot air (primarily from the CPU heat sink) escape quickly.
Verb
  1. 1
    To fill or be filled with air in an unintended cavity. ambitransitive

Etymology

Etymology 1

From blow + hole.

Etymology 2

From blow + hole.

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