blowhole

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blow·hole

 (blō′hōl′)
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.

blowhole

(ˈbləʊˌhəʊl)
n
1. (Zoology) the nostril, paired or single, of whales, situated far back on the skull
2. (Zoology) a hole in ice through which whales, seals, etc, breathe
3. (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. (Metallurgy) a bubble-like defect in an ingot resulting from gas being trapped during solidification
5. (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

blow•hole

(ˈbloʊˌhoʊl)

n.
1. either of two nostrils or spiracles, or a single one, at the top of the head in whales and dolphins, through which they breathe.
2. a hole in the ice to which whales or seals come to breathe.
3. a defect in metal caused by the escape of gas.
[1685–95]

blow·hole

(blō′hōl′)
1. A hole or one of a pair of holes used for breathing and located on top of the head of whales, porpoises, and dolphins.
2. A hole in ice to which aquatic mammals come to breathe.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.blowhole - the spiracle of a cetacean located far back on the skullblowhole - 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 airblowhole - a hole for the escape of gas or air
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
مَنْفَذُ هَواء
nozdryvětrací/dýchací otvor
åndehul
szelelõlyuk
öndunarop; blástursop
hava deliğinefeslik

blowhole

[ˈbləʊhəʊl] N
1. [of whale] → orificio m nasal
2. (in ice) → brecha f, orificio m (para respirar)

blowhole

[ˈbləʊˌhəʊl] n (Geol) → sfiatatoio

blow2

(bləu) past tense blew (blu) : past participle blown verb
1. (of a current of air) to be moving. The wind blew more strongly.
2. (of eg wind) to cause (something) to move in a given way. The explosion blew off the lid.
3. to be moved by the wind etc. The door must have blown shut.
4. to drive air (upon or into). Please blow into this tube!
5. to make a sound by means of (a musical instrument etc). He blew the horn loudly.
ˈblowhole noun
a breathing-hole (through the ice for seals etc) or a nostril (especially on the head of a whale etc).
ˈblow-lamp, ˈblow-torch noun
a lamp for aiming a very hot flame at a particular spot. The painter burned off the old paint with a blow-lamp.
ˈblowout noun
1. the bursting of a car tyre. That's the second blowout I've had with this car.
2. (on eg an oil rig) a violent escape of gas etc.
ˈblowpipe noun
a tube from which a dart (often poisonous) is blown.
blow one's top
to become very angry. She blew her top when he arrived home late.
blow out
to extinguish or put out (a flame etc) by blowing. The wind blew out the candle; The child blew out the match.
blow over
to pass and become forgotten. The trouble will soon blow over.
blow up
1. to break into pieces, or be broken into pieces, by an explosion. The bridge blew up / was blown up.
2. to fill with air or a gas. He blew up the balloon.
3. to lose one's temper. If he says that again I'll blow up.
References in periodicals archive ?
When an Arc is struck, the steel inner core melts to fill the weld and the outside coating burns to create a gas pocket and a layer of material called "slag" that shields the welding pool from the environment.
Two escape in Newport gas pocket blast TWO men narrowly escaped serious burns when a jet of gas from an underground pocket ignited as they were carrying out drilling work in a field at Old Maesglas Road, Newport.
The MotoTec Gas Pocket Bike travels an average of around 20 miles on a tank of gas.
It is a free-swimming foam ball with an instrument-filled aluminum alloy core capable of detecting and locating very small leaks and gas pocket leaks in pipelines.
The portable tank which they were lowering also fell in the well, due to which petrol mixed up with water and a poisonous gas pocket was formed in it.
X-rays revealed another gas pocket in his intestine and, sure enough, another sock was duly surgically removed from his small intestine.
Repsol had planned to drill three wells last winter but drilling on one prospect, on the Colville River delta, was interrupted when drilling crews hit a shallow gas pocket that caused a gas blowout.
In the old way of getting natural gas, you just tap a natural gas pocket and it comes out.
It is stored in gas fields in the same way: depending on the pressure, part of it will remain in a gas pocket and the rest will go into the water.
An offshore oil-drilling platform that accidentally hit such a gas pocket would also be endangered.
For example, a sudden increase of mud level might indicate that the drill bit a gas pocket, and pressure is pushing the mud back up the hole.