diˈminisherrare. [f. as prec. + -er1.] One who or that which diminishes or lessens. 1601Weever Mirr. Mart. A vij, This paynted wether⁓cocke, Arts diminisher, With cowardize beginneth to empeach me.1637Clarke Serm. 241 (L.) The diminisher of regal, but the demolisher of episcopal authority.