metal halide lamp(redirected from Metal halide light bulb)
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metal halide lamp[′med·əl ′ha‚līd ‚lamp]
A discharge lamp in which metal halide salts are added to the contents of a discharge tube in which there is a high-pressure arc in mercury vapor; the added metals generate different wavelengths, to give substantially white light at an efficiency approximating that of high-pressure sodium lamps.
metal halide lamp, metallic-additive lamp
An electric-discharge lamp in which the light is produced by the radiation from a mixture of a metallic vapor (e.g., mercury) and the products of the dissociation of halides (e.g., halides of thallium, indium, sodium, etc.).