Crossword-Solution: ZINCO 5 letters, 1 clue 🏆 scrabble score: 16

With this object in view aluminium has been added from a separate crucible to the molten zinc at the moment of dipping the article to be zinced, so as to form a compound surface of zinco-aluminium, and to reduce the ashes formed from the protective coverings of sal-ammoniac, fat, glycerine, etc.

Etym: [Zinco- + -graphy.] Defn: The art or process of engraving or etching on zinc, in which the design is left in relief in the style of a wood cut, the rest of the ground being eaten away by acid.

Etym: [Zinco- + polar.] (Elec.) Defn: Electrically polarized like the surface of the zinc presented to the acid in a battery, which has zincous affinity.

Half-tone zinco and similar processes have brought down the expenses entailed by reproductions in colour-work, so as to render an undertaking of this kind much more feasible than it was in the middle of the last half-century.

For "high-art" printing on fine paper with the more expensive kinds of ink, the half-tone zinco processes will doubtless maintain their supremacy and gradually diminish the area within which lithographic printing is required.