so·le·noid
noun/ˈsɒlənɔɪd/, /ˈsəʊlənɔɪd/
/ˈsɑːlənɔɪd/, /ˈsəʊlənɔɪd/
(physics)- a piece of wire, wound into circles, which acts as a magnet when carrying an electric current
Topics Engineeringc2螺线管(通电时产生磁场) Word Originearly 19th cent.: from French solénoïde, from Greek sōlēn ‘channel, pipe’.