螺線 luóxiàn screw thread Origin Definitions Defs Strokes Stroke Words Sentences Sents 螺线管 luóxiànguǎn solenoid a cylindrical coil of wire acting as a magnet when carrying electric current; coil等角螺线 děngjiǎoluóxiàn equiangular spiral a spiral curve that cuts all radial lines from its origin at a constant angle, also known as a logarithmic spiral or rhumb line