electrostatic Syllabification: (e·lec·tro·stat·ic)Pronunciation: /iˌlektrəˈstatik/Definition of electrostatic adjective Physics of or relating to stationary electric charges or fields as opposed to electric currents. Origin: mid 19th century: from electro- + static, on the pattern of hydrostaticelectrostatic in other Oxford dictionaries Definition of electrostatic in the British & World English dictionary