Definition of blowhole in English:



  • 1The nostril of a whale or dolphin on the top of its head.

    • ‘When they dive, muscles close the blowhole and their ribcage collapses to keep air bubbles from forming in the bloodstream.’
    • ‘One of the whales spouted a cloud of mist from its blowhole.’
    • ‘A calf will hump up onto the back of the sleeping mother, breach onto her, cover her blowhole with his tail.’
    • ‘While the rest of us stood agog as the spray from the whales' blowholes misted over the deck, three divers managed to slip into the water.’
    • ‘They are surrounded by crowds of people stroking and patting them often near sensitive areas such as their blowholes and they become obese through uncontrolled feeding.’
  • 2A hole in ice through which a sea mammal breathes or a person fishes.

    • ‘Polar bears will stand or lie by the seal’s blowhole in the ice for hours; they may swim towards seals resting on the ice flows with only their nose showing above the water.’
    • ‘The bears wait and watch at the seal's blowhole, not moving, perhaps hiding their black noses behind the ice.’
    • ‘A burly man raises a stick with a hook on the end to strike a baby seal as it surfaces from a blowhole in the ice.’
    • ‘They will sit by a seal blowhole for hours, waiting, until the animal surfaces.’
    • ‘Soon you come across a blowhole forming a vertical shaft 1.5m in diameter that leads to the surface.’
    outlet, inlet, opening, aperture, vent hole, hole, gap, orifice, space, cavity, cleft, slit, pore, port
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    1. 2.1 A vent for air or smoke in a tunnel or other structure.
      • ‘This can probably be attributed to the top blowhole wicking away the rising hot air.’
      • ‘This electrical power generating system is applicable in any location where wave action in blowholes produces compressed air.’
      • ‘It has blowholes and lava tubes, the wettest spot on earth, and the nation's only royal palace.’
      • ‘This vent area is not your standard side mounted blowhole.’
      • ‘Tunnels and Caves is another popular site, starting and finishing through a blowhole that leads to an underwater playground of caves and tunnels, where bubbles escape through volcanic fissures.’
      vent, vent hole, way out, exit, egress
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