6 results for: blowhole

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Dictionary.com Unabridged (v 1.1) - Cite This Source - Share This

blow·hole

Audio Help [bloh-hohl] Pronunciation Key

–noun

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.	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.

[Origin: 1685–95; blow² + hole

]

Dictionary.com Unabridged (v 1.1)
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2006.

Encyclopædia Britannica, Inc.
blowhole

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American Heritage Dictionary - Cite This Source - Share This

blow·hole Audio Help (blō'hōl') Pronunciation Key
n.

An opening or one of a pair of openings for breathing, located on the top of the head of cetaceans, such as whales and dolphins. The blowhole is opened by muscles upon surfacing and closed by the pressure of water upon diving.
A hole in ice to which aquatic mammals, such as dolphins, come to breathe.
A vent to permit the escape of air or other gas.

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The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2006 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.

WordNet - Cite This Source - Share This

blowhole
noun
1.	the spiracle of a cetacean located far back on the skull
2.	a hole for the escape of gas or air [syn: vent]

Kernerman English Multilingual Dictionary (Beta Version) - Cite This Source - Share This
ˈblowhole noun

a breathing-hole (through the ice for seals etc) or a nostril (especially on the head of a whale etc)

Arabic:	مَنْفَذُ هَواء
Chinese (Simplified):	(（鲸鱼)鼻孔
Chinese (Traditional):	(鯨魚)鼻孔
Czech:	větrací, *dýchací otvor; nozdry (velryby)
Danish:	åndehul
Dutch:	wak, spuitgat
Estonian:	hingamisauk, hingamisava
Finnish:	hengitysaukko
French:	évent
German:	das Luftloch
Greek:	τρύπα μέσα στους πάγους από όπου παίρνουν αέρα ζώα σαν
Hungarian:	szelelőlyuk
Icelandic:	öndunarop; blástursop
Indonesian:	lubang pernapasan pada ikan paus, lumba-lumba dsb
Italian:	sfiatatoio

Japanese:	噴気孔
Korean:	환기 구멍
Latvian:	āliņģis; (vaļu u.tml.) nāss
Lithuanian:	kvėpuojamoji anga
Norwegian:	pustehull, åndehull
Polish:	otwór wentylacyjny
Portuguese (Brazil):	respiradouro
Portuguese (Portugal):	respiradouro
Romanian:	gură de aerisire
Russian:	дыхало, отдушина
Slovak:	vetrací otvor; dýchací otvor
Slovenian:	zračni kanal
Spanish:	respiradero; orificio nasal
Swedish:	andningshål, blåshål, spruthål
Turkish:	hava deliği, nefeslik

Webster's Revised Unabridged Dictionary - Cite This Source - Share This

Blowhole

Blow"hole`\, n. 1. 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.

2. A nostril or spiracle in the top of the head of a whale or other cetacean.

Note: There are two spiracles or blowholes in the common whales, but only one in sperm whales, porpoises, etc.

3. A hole in the ice to which whales, seals, etc., come to breathe.

4. (Founding) An air hole in a casting.

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