blowhole

Từ điển WordNet v3.1 - WordNet Dictionary

noun

1. the spiracle of a cetacean located far back on the skull
• Hypernyms:
spiracle
• Part Holonyms:
cetacean, cetacean mammal, blower
2. a hole for the escape of gas or air
• Syn:
vent, venthole, vent-hole
• Derivationally related forms:
ventilate (for: vent)
• Hypernyms:
hole
• Hyponyms:
smoke hole
• Part Holonyms:
air passage, air duct, airway

• Từ đồng nghĩa / Synonyms:
  vent, venthole, vent-hole