blow hole
noun
1.
an air or gas vent, especially 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.
Metallurgy. a defect in a casting or ingot caused by the escape of gas.
5.
Geology. a hole in a sea cliff or coastal terrace through which columns of spray are jetted upward.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2013.
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Based on the Random House Dictionary, © Random House, Inc. 2013.
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Link To blow hole
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Blow hole
is always a great word to know.
So is quincunx. Does it mean:
| an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle. |
| a children's mummer's parade, as on the Fourth of July, with prizes for the best costumes. |
Collins
World English Dictionary
blowhole (ˈbləʊˌhəʊl) ![[Click for IPA pronunciation guide]](http://static.sfdict.com/dictstatic/g/d/dictionary_questionbutton_default.gif) | |
| —n | |
| 1. | the nostril, paired or single, of whales, situated far back on the skull |
| 2. | a hole in ice through which whales, seals, etc, breathe |
| 3. | a. a vent for air or gas, esp to release fumes from a tunnel, passage, etc |
| b. (NZ) a hole emitting gas or steam in a volcanic region | |
| 4. | a bubble-like defect in an ingot resulting from gas being trapped during solidification |
| 5. | geology a hole in a cliff top leading to a sea cave through which air is forced by the action of the sea |
Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Online Etymology Dictionary, © 2010 Douglas Harper
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