A scum of impure graphite, formed on molten iron during smelting.
- ‘Fumes and kish (graphite flakes from the carbon saturated hot metal) are emitted from the vessel's mouth and collected by the pollution control system.’
- ‘In a hypereutectic gray iron, solidification begins with the precipitation of kish graphite in the melt.’
- ‘Carbon and irons with a greater carbon content will (under suitable conditions) start freezing by throwing out kish graphite of large size.’
Early 19th century: of uncertain origin; compare with French dialect quiasse ‘scum on metal’ ( French chiasse ‘insect excrement’).
We take a look at several popular, though confusing, punctuation marks.