n. [ OF. esventail. Cf. Ventail. ] The movable front to a helmet; the ventail. [ 1913 Webster ]
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 ]