blowhole
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
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