blowhole

English

Etymology

blow +‎ hole

Noun

blowhole (plural blowholes)

1. The spiracle, on the top of the head, through which cetaceans breathe.
2. A vent for the escape of gas.
3. A top-facing opening to a cavity in the ground very near an ocean's shore, leading to a marine cave from which wave water or bursts of air are expelled.
4. (metallurgy) An unintended cavity filled with air in a casting product.
5. (computer hardware) A vertical opening in the top of computer cases, that let hot air, primarily from the CPU heat sink, escape quickly.

Translations

spiracle through which cetaceans breath

• Faroese: blástur n
• Finnish: ilmareikä, hengitysaukko
• German: Blasloch n
• Greek: φυσητήρας (el) m (fysitíras)
• (deprecated template usage) {{trans-mid}}
• Icelandic: blásturshola f, blástursop n
• Italian: sfiatatoio (it) m
• Maori: tāpihapiha
• Russian: ды́хало (ru) n (dýxalo)

vent for the escape of gas

• Finnish: kaasuonkalo
• Ido: nazotruo (io)
• (deprecated template usage) {{trans-mid}}
• Italian: sfiatatoio (it)
• Russian: отду́шина (ru) f (otdúšina), вентиляцио́нное отве́рстие n (ventiljaciónnoje otvérstije)

A top-facing opening to a cavity in the ground very near an ocean's shore, that leads to a marine cave from which wave water and/or bursts of air are expelled.

• (deprecated template usage) {{trans-mid}}

unintended cavity filled with air in a casting product

• Dutch: gietblaas, gietgal (nl)
• Finnish: ilmakupla (fi), ilmareikä
• (deprecated template usage) {{trans-mid}}
• German: Lunker (de) m

The translations below need to be checked and inserted above into the appropriate translation tables. See instructions at Wiktionary:Entry layout § Translations.

Translations to be checked

• (deprecated template usage) French: évent m (1)
• (deprecated template usage) {{trans-mid}}

Verb

1. (metallurgy, transitive, intransitive) To fill or be filled with air in an unintended cavity.