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Pyrotechnic device

device that uses an exothermic chemical reaction for the production of heat, light, gas, smoke and/or sound

Pronunciation
/ˌpaɪrəˈtɛknɪk dəˈvaɪs/
/ˌpʌɪrəʊˈtɛknɪk dɪˈvʌɪs/