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Ro-sette′.


1. (Metallurgy.) A disk of red copper from the refining hearth or crucible. As the impurities are removed in the shape of scoriae or slag, and the metal exposed, the surface of the metal is congealed by throwing on water. This is called quenching. The hardened crust is of a red color, and is called a rosette. The operation being repeated, the metal is obtained in a form for ready handling and father treatment, instead of being in a solid mass. It is known as rose-copper. See copper-furnace.


2. (Mill.) A circular arrangement of sails in a windmill; the vanes attached to radial arms.

3. A leather or metallic ornament placed on a bridle or halter at the point — where the front joins the crown-piece.

4. A circular ornament of fabric, plaited with leaves somewhat resembling those of a flower.


5. (Gas.) A form of gas-burner in which the gas issues at a circular series of holes resembling a rosette. See stove-burner.

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