Payne's process \Payne's process\ A process for preserving timber and rendering it incombustible by impregnating it successively with solutions of sulphate of iron and calcium chloride in vacuo. -- {Payn"ize}, v. t. Paynize \Payn"ize\, v. t. [From Mr. Payne, the inventor.] To treat or preserve, as wood, by a process resembling kyanizing.