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Edison, Thomas Alva
     
Edison, Thomas Alva
(1847-1931) a US inventor who made over 1300 electrical inventions, including the microphone, the record player, and equipment for the cinema. He is most famous for inventing the light bulb (=a glass container with a thin wire inside, which produces light by using electricity).
Definition from the Longman Dictionary of Contemporary English
Advanced Learner's Dictionary.

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