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Definition of voltmeter
voltmeter
/ˈvoʊltˌmiːtər/
volt · me · ter
Plural:voltmeters
voltmeter Lexical Profile
CEFR
B2
Grade
8
Tier
2
Usage
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• noun
1
An instrument used for measuring the electric potential difference between two points in an electrical circuit, expressed in volts.
Example
"The technician connected the voltmeter across the battery terminals in parallel to check if it was supplying enough voltage."
Synonyms
View all synonyms for voltmeter• Nearby Words
Word Origin & Etymology
Coined in the 1880s, combining 'volt' (named after Italian physicist Alessandro Volta) and the suffix '-meter' (from Greek 'metron', meaning measure).
Usage Trend
Historical frequency of usage in published text.
180019102020
Data source: Google Books Ngram Viewer
Cite this Entry
Wordmom. (2026). Definition of Voltmeter. In Wordmom Dictionary. Retrieved Oct 16, 2026, from https://wordmom.com/dictionary/voltmeter