Electrometric
[ih-lek-trom-i-ter, ee-lek-] /ɪ lɛkˈtrɒm ɪ tər, ˌi lɛk-/
noun
1.
a calibrated device used for measuring extremely low voltages.
/ɪlɛkˈtrɒmɪtə; ˌiːlɛk-/
noun
1.
an instrument for detecting or determining the magnitude of a potential difference or charge by the electrostatic forces between charged bodies
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