mas·car·a 
(mă-skărə)
(mă-skărə)n.
A cosmetic applied to thicken, lengthen, and usually darken the eyelashes.
tr.v. mas·car·aed, mas·car·a·ing, mas·car·as
To apply mascara to.
[Probably Spanish máscara, mask; akin to Italian maschera; see MASK.]