Burning glass
- 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]
The Collaborative International Dictionary of English. 2000.
Look at other dictionaries:
burning glass — n. a convex lens for focusing the sun s rays so as to produce heat or set fire to something … English World dictionary
Burning-glass — A burning glass is a large convex lens that can concentrate the sun s rays onto a small area, heating up the area and thus resulting in ignition of the exposed surface. They were used in 18th century chemical studies for burning materials in… … Wikipedia
burning glass — lens of glass which causes combustion by focusing the sun s rays … English contemporary dictionary
burning-glass — burnˈing glass noun A convex lens concentrating the sun s rays at its focus to produce fire or heat • • • Main Entry: ↑burn … Useful english dictionary
burning glass — a converging lens used to produce heat or ignite substances by focusing the sun s rays. Also called sunglass. [1560 70] * * * … Universalium
burning-glass — noun /ˈbəːnɪŋɡlɑːs/ A magnifying lens, as used to focus sunlight on to an object … Wiktionary
burning glass — noun a lens for concentrating the sun s rays on an object so as to set fire to it … English new terms dictionary
burning-glass — n. Convex lens … New dictionary of synonyms
burning-glass — /ˈbɜnɪŋ glas/ (say berning glahs) noun a convex lens used to produce heat or ignite substances by focusing the sun s rays … Australian English dictionary
burning glass — noun : a positive lens for producing intense heat by converging the sun s rays approximately to the principal focus of the lens the point of convergence being a very small image of the sun … Useful english dictionary
