solenoid
noun/ˈsɒlənɔɪd/, /ˈsəʊlənɔɪd/
/ˈsɑːlənɔɪd/, /ˈsəʊlənɔɪd/
(physics)- a piece of wire, wound into circles, which acts as a magnet when carrying an electric currentTopics Engineeringc2Word Originearly 19th cent.: from French solénoïde, from Greek sōlēn ‘channel, pipe’.
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solenoid