ventail

listen to the pronunciation of ventail
English - English
The movable front part of a helmet, originally including the visor but later specifically the separate lower section

A comely knight, all arm'd in complete wize, / Through whose bright ventayle lifted vp on hye / His manly face Lookt foorth .

A piece of armour used to protect the neck
That part of a mediaeval helmet which is intended for the admission of air
a medieval hood of mail suspended from a basinet to protect the head and neck
That part of a helmet which is intended for the admission of air, sometimes in the visor