DuckCorp Dico

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1.                 From The Collaborative International Dictionary of English v.0.48:
                   
   
   
                   
                     
   Ventail \Vent"ail\ (v[e^]nt"[=a]l), n. [OF. ventaille, F.
      ventail. See Ventilate, and cf. Aventail.]
      That part of a helmet which is intended for the admission of
      air, -- sometimes in the visor. --Spenser.
      [1913 Webster]
            Her ventail up so high that he descried
            Her goodly visage and her beauty's pride. --Fairfax.
      [1913 Webster]