noun
- Plural of gannister; a hard, fine-grained siliceous rock used in the manufacture of refractory bricks and furnace linings.
Usage: technical; industrial; chiefly British
Examples
- The foundry sourced gannisters from local quarries to line their high-temperature furnaces.
- Gannisters are valued in steel production for their heat-resistant properties.
- The refractory bricks made from gannisters can withstand extreme temperatures.
- Industrial suppliers stock various grades of gannisters for different applications.