'Burning glass' definitions:
Definition of 'Burning glass'
From: GCIDE
- Burning \Burn"ing\, n. The act of consuming by fire or heat, or of subjecting to the effect of fire or heat; the state of being on fire or excessively heated. [1913 Webster]
- Burning fluid, any volatile illuminating oil, as the lighter petroleums (naphtha, benzine), or oil of turpentine (camphine), but esp. a mixture of the latter with alcohol.
- Burning glass, a convex lens of considerable size, used for producing an intense heat by converging the sun's rays to a focus.
- Burning house (Metal.), the furnace in which tin ores are calcined, to sublime the sulphur and arsenic from the pyrites. --Weale.
- Burning mirror, a concave mirror, or a combination of plane mirrors, used for the same purpose as a burning glass. [1913 Webster]
- Syn: Combustion; fire; conflagration; flame; blaze. [1913 Webster]