electroscope

[ ih-lek-truh-skohp ]

/ ɪˈlɛk trəˌskoʊp /

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noun

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.

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Origin of electroscope

First recorded in 1815–25; electro- + -scope

OTHER WORDS FROM electroscope

e·lec·tro·scop·ic

[ih-lek-truh-skop-ik], /ɪˌlɛk trəˈskɒp ɪk/, adjective

Words nearby electroscope

electroretinogram, electroretinograph, electroretinography, electrorheology, electroscission, electroscope, electrosensitive, electroshock, electroshock therapy, electrosmosis, electrostatic

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

How to use electroscope in a sentence

At any time in the drift, an electroscope exposed outside became rapidly charged.
The Home of the Blizzard|Douglas Mawson
The electroscope will now insulate well enough to show no appreciable collapse of the leaves in one or two hours' time.
On Laboratory Arts|Richard Threlfall
The quartz electroscope is taken, and the insulating rod heated in the blow-pipe.
On Laboratory Arts|Richard Threlfall
A charge is given to the electroscope, and the time required for a given degree of collapse of the leaves noted.
On Laboratory Arts|Richard Threlfall

When a charged body is brought near the electroscope the leaves become charged similarly by induction.
The New Gresham Encyclopedia|Various

British Dictionary definitions for electroscope

electroscope

/ (ɪˈlɛktrəʊˌskəʊp) /

noun

an apparatus for detecting an electric charge, typically consisting of a rod holding two gold foils that separate when a charge is applied

Derived forms of electroscope

electroscopic (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