blowhole


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blowhole

1. the nostril, paired or single, of whales, situated far back on the skull
2. a hole in ice through which whales, seals, etc., breathe
3. a bubble-like defect in an ingot resulting from gas being trapped during solidification
4. Geology a hole in a cliff top leading to a sea cave through which air is forced by the action of the sea

blowhole

[′blō‚hōl]
(geology)
A longitudinal tunnel opening in a sea cliff, on the upland side away from shore; columns of sea spray are thrown up through the opening, usually during storms.
(metallurgy)
A pocket of air or gas formed in a metal during solidification.
(vertebrate zoology)
The nostril on top of the head of cetacean mammals.

gas pocket, blowhole

A hole or void, as in a casting, which results from entrained air.
References in periodicals archive ?
There is another whale blowing water out of the blowhole on its back.
While we don't have blowholes, we do share a number of traits with humpback whales: we are warm blooded, breathe air, give birth to and nurse' live young.
The most extreme example of a high larynx are the cetaceans, whose larynx is in the nasopharynx just below the cephalic blowhole.
She let us rub her belly and look into the blowhole on top of her head (dolphin use this special "nostril" to breathe).
The whale spouted water from its blowhole and moved its caudal fin when officials and volunteers resumed their attempts to save it shortly before 7 a.
Spouting: when a whale breathes through its blowhole on the surface of the water
She scooped up some water with her bucket and plashed it over him, being careful not to get any in his blowhole.
Blowhole, Save the World and Dance With King Julien in the Latest Penguins of Madagascar Video Game Adventure
THE young couple who saved a student washed into a blowhole by a wave are rightly being hailed as heroes.
Adventures offered on Isla Palenque include guided exploration of the island's coastal caves and hikes to natural landmarks such as the blowhole at Punta Ballena.
A single whale swims below the fish, carefully releasing air from its blowhole to create a wall of bubbles.
Dolphins breathe air through a blowhole on the top of their heads, so make sure no water goes into its blowhole.