bluing n 1: used to whiten laundry or hair or give it a bluish tinge [syn: {bluing}, {blueing}, {blue}] 2: a process that makes something blue (or bluish) [syn: {bluing}, {blueing}]
Blue \Blue\, v. t. [imp. & p. p. {Blued}; p. pr. & vb. n. {Bluing}.] To make blue; to dye of a blue color; to make blue by heating, as metals, etc. [1913 Webster]
Bluing \Blu"ing\, n. 1. The act of rendering blue; as, the bluing of steel. --Tomlinson. [1913 Webster] 2. Something, as indigo or other preparations, used to give a bluish tint, especially to white clothing when being washed. [1913 Webster +PJC]