What is another word for blowholes?
Pronunciation: [blˈə͡ʊhə͡ʊlz] (IPA) 
Blowholes are natural openings on the surface of the earth that allow air or water to pass through. These openings are often found on top of seabeds, where they're used by marine mammals to breathe. There are many synonyms for the word "blowholes," including airholes, breathing holes, and snorkels. While snorkels are specifically used by humans for underwater breathing, airholes and breathing holes are descriptive of the natural openings found on land or in water. Other synonyms for blowholes include vents, spouts, and fumaroles. Each term describes a different type of opening, with fumaroles being specifically used to describe openings in the earth's crust that release steam, gas, or volcanic ash.
