p. pr. & vb. n. - of Flat
n. - The process or operation of making flat, as a cylinder of glass by opening it out.
n. - A mode of painting,in which the paint, being mixed with turpentine, leaves the work without gloss.
n. - A method of preserving gilding unburnished, by touching with size.
n. - The process of forming metal into sheets by passing it between rolls.