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1. Oxford American Dictionary

   blowhole

   • IPA[ˈblōˌhōl]

   美式

   • n.
     the nostril of a whale or dolphin on the top of its head.；a hole in ice to which seals, whales, and other aquatic animals come to breathe.

   • noun: blowhole, plural noun: blowholes

2. • 釋義

   n.

   名詞

   • 1. the nostril of a whale or dolphin on the top of its head.
   • ▪ a hole in ice to which seals, whales, and other aquatic animals come to breathe.
   • ▪ a vent for air or smoke in a tunnel or other structure.
   • ▪ a cavity in a metal casting, produced by the escape of air through the liquid metal.
3. • 更多解釋

   blowhole

   • IPA[ˈbləʊhəʊl]

   英式

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

   Oxford Dictionary