Flashbulb meaning

flăshbŭlb
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A glass bulb filled with finely shredded aluminum or magnesium foil that is ignited by electricity to produce a short-duration high-intensity light flash for taking photographs.
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An electric lightbulb giving a brief, illuminating light, for taking photographs.
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(photography) A glass bulb, filled with finely shredded magnesium, that emitted a short, intense flash of light when ignited by electricity; could be used only once.
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