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encephalophone

noun
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en·​ceph·​a·​lo·​phone
plural -s

Definition of encephalophone

: an apparatus that emits a continuous hum whose pitch is changed by interference of brain waves transmitted through oscillators from electrodes attached to the scalp and that is used to diagnose abnormal brain functioning

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History and Etymology for encephalophone

encephal- + -phone

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“Encephalophone.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/encephalophone. Accessed 2 Mar. 2021.

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