n, pl  -ties  1 a  :  a fundamental entity of nature consisting of negative and positive kinds, observable in the attractions and repulsions of bodies electrified by friction and in natural phenomena (as lightning or the aurora borealis), and usu. utilized in the form of electric currents  b  :  electric current or power  2  :  a science that deals with the phenomena and laws of electricity .
 
   
 
Published under license with Merriam-Webster, Incorporated.  © 1997-2024.