blowhole

blow·hole  (blhl)

n.

1. 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.

2. A hole in ice to which aquatic mammals, such as dolphins, come to breathe.

3. A vent to permit the escape of air or other gas.

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blowhole [ˈbləʊˌhəʊl]

n

1. (Life Sciences & Allied Applications / Zoology) the nostril, paired or single, of whales, situated far back on the skull

2. (Life Sciences & Allied Applications / Zoology) a hole in ice through which whales, seals, etc., breathe

3. (Miscellaneous Technologies / Building)

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. (Engineering / Metallurgy) a bubble-like defect in an ingot resulting from gas being trapped during solidification

5. (Earth Sciences / Geological Science) Geology a hole in a cliff top leading to a sea cave through which air is forced by the action of the sea

Thesaurus

Noun	1.	blowhole - the spiracle of a cetacean located far back on the skull cetacean, cetacean mammal, blower - large aquatic carnivorous mammal with fin-like forelimbs no hind limbs, including: whales; dolphins; porpoises; narwhals spiracle - a breathing orifice
	2.	blowhole - a hole for the escape of gas or air vent, vent-hole, venthole air duct, air passage, airway - a duct that provides ventilation (as in mines) hole - an opening deliberately made in or through something smoke hole - a vent (as in a roof) for smoke to escape

Translations

blowhole [ˈbləʊhəʊl] N

1. [of whale] → orificio m nasal

2. (in ice) → brecha f, orificio m (para respirar)

blowhole [ˈbləʊˌhəʊl] n (Geol) → sfiatatoio

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blowhole [ˈbləʊˌhəʊl] n (Geol) → sfiatatoio