| NOUN | phenomenon | alpha wave, alpha rhythm | the normal brainwave in the electroencephalogram of a person who is awake but relaxed |
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| Meaning | The normal brainwave in the electroencephalogram of a person who is awake but relaxed; occurs with a frequency of 8-12 hertz. | |
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| Synonym | alpha rhythm | |
| Broader | brainwave, brain wave, cortical potential | (neurophysiology) rapid fluctuations of voltage between parts of the cerebral cortex that are detectable with an electroencephalograph |
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