blowhole : Dictionary / Wörterbuch (BEOLINGUS, TU Chemnitz)

English Dictionary: blowhole	by the DICT Development Group
2 results for blowhole
From WordNet (r) 3.0 (2006) [wn]:
blowhole n the spiracle of a cetacean located far back on the skull a hole for the escape of gas or air Synonym(s): vent, venthole, vent-hole, blowhole
From Webster's Revised Unabridged Dictionary (1913) [web1913]:
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.