air shaft

from WordNet (r) 3.0 (2006)

air shaft
    n 1: a shaft for ventilation [syn: {air shaft}, {air well}]

from The Collaborative International Dictionary of English v.0.48

Air shaft \Air" shaft`\
   A passage, usually vertical, for admitting fresh air into a
   mine or a tunnel.
   [1913 Webster]

from Moby Thesaurus II by Grady Ward, 1.0

23 Moby Thesaurus words for "air shaft":
      air duct, air hole, air passage, air tube, airway, blowhole,
      breathing hole, louver, louverwork, naris, nostril, shaft,
      spilehole, spiracle, touchhole, transom, vent, ventage, venthole,
      ventiduct, ventilating shaft, ventilator, wind tunnel

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