BLOWHOLES
Noun
blowholes
plural of blowhole
Verb
blowholes
Third-person singular simple present indicative form of blowhole
Source: Wiktionary
BLOWHOLE
Blow"hole`, n.
1. A cavern in a cliff, at the water level, opening to the air at its
farther extremity, so that the waters rush in with each surge and
rise in a lofty jet from the extremity.
2. A nostril or spiracle in the top of the head of a whale or other
cetacean.
Note: There are two spiracles or blowholes in the common whales, but
only one in sperm whales, porpoises, etc.
3. A hole in the ice to which whales, seals, etc., come to breathe.
4. (Founding)
Definition: An air hole in a casting.
Source: Webster’s Unabridged Dictionary 1913 Edition