electroscope

[ih-lek-truh-skohp]
noun
  1. a device for detecting the presence and determining the sign of electric charges by means of electrostatic attraction and repulsion, often between two pieces of gold leaf enclosed in a glass-walled chamber.

Origin of electroscope

First recorded in 1815–25; electro- + -scope
Related formse·lec·tro·scop·ic [ih-lek-truh-skop-ik] /ɪˌlɛk trəˈskɒp ɪk/, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for electroscope

Historical Examples of electroscope


British Dictionary definitions for electroscope

electroscope

noun
  1. an apparatus for detecting an electric charge, typically consisting of a rod holding two gold foils that separate when a charge is applied
Derived Formselectroscopic (ɪˌlɛktrəʊˈskɒpɪk), adjective
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012