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Dictionary


blow•hole



Pronunciation: (blō'hōl"), [key]
n.
1. an air or gas vent, esp. one to carry off fumes from a tunnel, underground passage, etc.
2. either of two nostrils or spiracles, or a single one, at the top of the head in whales and other cetaceans, through which they breathe.
3. a hole in the ice to which whales or seals come to breathe.
4. Metall.a defect in a casting or ingot caused by the escape of gas.
5. Geol.a hole in a sea cliff or coastal terrace through which columns of spray are jetted upward.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

blow-hardblowing
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