Meaning of TRANSFORMER in English

TRANSFORMER

/ trænsˈfɔːmə(r); NAmE -ˈfɔːrm-/ noun

a device for reducing or increasing the voltage of an electric power supply, usually to allow a particular piece of electrical equipment to be used

Oxford Advanced Learner's English Dictionary.      Оксфордский английский словарь для изучающик язык на продвинутом уровне.