Jisho

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Noun
1. light bulbSee also 白熱電球
Wikipedia definition
2. Incandescent light bulbThe incandescent light bulb, incandescent lamp or incandescent light globe produces light by heating a filament wire to a high temperature until it glows. The hot filament is protected from oxidation in the air with a glass enclosure that is filled with inert gas or evacuated. In a halogen lamp, filament evaporation is prevented by a chemical process that redeposits metal vapor onto the filament, extending its life.
Read “Incandescent light bulb” on English Wikipedia
Read “電球” on Japanese Wikipedia
Read “Incandescent light bulb” on DBpedia

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