Definition of dusters:
(n) :
An object, such as a cloth or a purpose-made soft and puffy pad or mitt, used for dusting surfaces etc.
(n) :
Someone who dusts.
(n) :
A loose-fitting long coat.
(n) :
(education) A block of felt strips, shaped ergonomically, used to remove chalk from a chalkboard.
(n) :
(milling) A blowing machine for separating the flour from the bran.
(n) :
(papermaking) A revolving wire-cloth cylinder which removes the dust from rags, etc.