techn. Also U.S. lustering. [f. LUSTRE v.2 + -ING1.] The action of LUSTRE v.2; the manner in which something is lustered. In Metallurgy = BRIGHTENING vbl. sb. 2.
1875. Knight, Dict. Mech., Lustering (Metallurgy), the brightening of metal in the crucible at the moment of reaching its point of purity.
1892. Athenæum, 6 Aug., 200/2. The style, colours, lustring, and other characteristics of the beautiful ceramic ware of Persia.
b. concr. = LUSTRE sb.1 1 d.
1875. Knight, Dict. Mech., Lustering, a polish; as black-luster for stoves, etc.
