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more about blowhole
blowhole |
2 definitions found 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. From WordNet r 1.6 [wn]: blowhole n 1: the spiracle of a cetacean located far back on the skull 2: an opening for the escape of gas or air [syn: {vent}, {venthole}]
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