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microphonism

[mahy-kruh-foh-niz-uh m]
noun Electronics.
  1. a usually undesirable property of some electronic circuits or components in which mechanical vibrations of a component affect the signal being transmitted through the circuit.
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Origin of microphonism

First recorded in 1945–50; microphone + -ism
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018