Glossary of Terms

Aluminum: a silver-white metallic element, light in weight, ductile, malleable, and not readily corroded or tarnished, occurring combined in nature in igneous rock, shale, clay, and most soil

Boric oxide: a colorless crystalline compound, B2O3, used in metallurgy and chemical analysis

Borosilicate glass : a glass containing 5 percent or more of B2O3, highly resistant to heat and shock, used esp. in making cookware and chemical glassware

Bulb: the glass housing, in which a partial vacuum has been established, that contains the filament of an incandescent electric lamp

Burner: that part of a gas fixture, lamp, etc., from which flame issues or in which it is produced

Candlepower: a measure of luminous intensity expressed in candles

Emit: to send forth (liquid, light, heat, sound, particles, etc.); discharge

Gas: a substance possessing perfect molecular mobility and the property of indefinite expansion, as opposed to a solid or liquid

Incandescent: glowing or white with heat; intensely bright; brilliant

Ignite: to set on fire; kindle

Kerosene: a mixture of liquid hydrocarbons obtained by distilling petroleum, bituminous shale, or the like, and widely used as a fuel, cleaning solvent, etc

Lamplight: the light thrown by a lamp

Lantern: a transparent or translucent, usually portable, case for enclosing a light and protecting it from the wind, rain, etc

Manganese: a hard, brittle, grayish-white, metallic element, an oxide of which, MnO2 (manganese dioxide), is a valuable oxidizing agent

Metallurgy: the technique or science of working or heating metals so as to give them certain desired shapes or properties

Molten: liquefied by heat; in a state of fusion; melted

Paraffin: a white or colorless, tasteless, odorless, water-insoluble, solid substance not easily acted upon by reagents, consisting of a mixture of hydrocarbons chiefly of the alkane series, obtained from crude petroleum

Rayon: a regenerated, semisynthetic textile filament made from cellulose, cotton linters, or wood chips by treating these with caustic soda and carbon disulfide and passing the resultant solution, viscose, through spinnerets

Titanium: a dark-gray or silvery, lustrous, very hard, light, corrosion-resistant, metallic element, occurring combined in various minerals

Ventilator: a contrivance or opening for replacing foul or stagnant air with fresh air

Volatile: evaporating rapidly; passing off readily in the form of vapor

Yttrium: a rare trivalent metallic element, found in gadolinite and other minerals

Zirconium: a metallic element found combined in zircon, baddeleyite, etc., resembling titanium chemically