(dated) A magnifying lens, as used to focus sunlight on to an object.

plural of book burning

Which burns more slowly than comparable objects.

plural of burning bush

(Judaism, Christianity) A biblical object described in Exodus 3:1-22, used by Yahweh to communicate with Moses.

The furnace in which tin ores are calcined, to sublime the sulfur and arsenic from the pyrites.

(derogatory, slang) stridently feminist

plural of burning-glass

plural of burning house

plural of burning bar