BLOWHOLES
- A hole for blowing or breathing through, in particular
- The nostril of a whale 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
- BLOWHOLE, an air or gas vent [n]