Blowhole



an air or gas vent, especially one to carry off fumes from a tunnel, underground passage, etc.
either of two nostrils or spiracles, or a single one, at the top of the head in whales and other cetaceans, through which they breathe.
a hole in the ice to which whales or seals come to breathe.
Metallurgy. a defect in a casting or ingot caused by the escape of gas.
Geology. a hole in a sea cliff or coastal terrace through which columns of spray are jetted upward.
Historical Examples

Whales, Dolphins, and Porpoises of the Western North Atlantic Stephen Leatherwood
The Beaked Whales of the Family Ziphidae Frederick True
Scientific American Supplement No. 819 Various
Whales, Dolphins, and Porpoises of the Western North Atlantic Stephen Leatherwood

noun
the nostril, paired or single, of whales, situated far back on the skull
a hole in ice through which whales, seals, etc, breathe

a vent for air or gas, esp to release fumes from a tunnel, passage, etc
(NZ) a hole emitting gas or steam in a volcanic region

a bubble-like defect in an ingot resulting from gas being trapped during solidification
(geology) a hole in a cliff top leading to a sea cave through which air is forced by the action of the sea
n.

Tagged:

Read Also:

  • Blow–hot–and–cold

    (of the wind or air) to be in motion. to move along, carried by or as by the wind: Dust seemed to blow through every crack in the house. to produce or emit a current of air, as with the mouth or a bellows: Blow on your hands to warm them. (of a horn, trumpet, […]

  • Blow–in

    (of a piece of advertising) inserted in but not attached to a magazine or newspaper: blow-in cards. (of the wind or air) to be in motion. to move along, carried by or as by the wind: Dust seemed to blow through every crack in the house. to produce or emit a current of air, as […]



  • Blow-into

    verb (intransitive, preposition) (informal) to arrive in or enter (a room, etc) suddenly

  • Blowpipe

    a tube through which a stream of air or gas is forced into a flame to concentrate and increase its heating action. Also called blow-iron, blowtube. Glass Blowing. a long metal pipe used to gather and blow the molten glass in making hollowware. blowgun. Medicine/Medical. an instrument used to observe or clean a cavity. Historical […]



Disclaimer: Blowhole definition / meaning should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional. All content on this website is for informational purposes only.