What is the meaning of wimple?

A covering of silk, linen, or other material, for the neck and chin, formerly worn by women as an outdoor protection, and still retained in the dress of nuns., A flag or streamer., To clothe with a wimple; to cover, as with a veil; hence, to hoodwink., To draw down, as a veil; to lay in folds or plaits, as a veil., To cause to appear as if laid in folds or plaits; to cause to ripple or undulate; as, the wind wimples the surface of water., To lie in folds; also, to appear as if laid in folds or plaits; to ripple; to undulate.