■ noun Physics an instrument for detecting and measuring electric charge, especially as an indication of the ionization of air by radioactivity.
Derivatives
electroscopic adjective
■ noun Physics an instrument for detecting and measuring electric charge, especially as an indication of the ionization of air by radioactivity.
Derivatives
electroscopic adjective
Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004