Home › Words › N › nosethirlnosethirlnosethirl · noun — A nostril.Definition from Wiktionary (CC BY-SA 3.0).EtymologyFrom Middle English nosethirl. By surface analysis, nose + thirl. Compare nostril.nounA nostril.e.g.“proud Encelade, whose wide nosethrils burnd / With breathed flames, like to a furnace red [...].” — 1590, Edmund Spenser, “Book III, Canto IX”, in The Faerie Queene. […], London: […] [John Wolfe] for William Ponsonbie, →OCLC:Definitions & examples from Wiktionary (CC BY-SA 3.0).