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alphatocopherol
alphavirus
alphonso
alphorn
Alpine
alpine
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Alport’s syndrome
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alpha rhythm
al·pha rhythm (plural al·pha rhythms)


noun 
Definition:
 
brain activity: the pattern of electrical activity in the brain of somebody awake but relaxed or drowsy, registering on an electroencephalograph at a reading between 8 and 13 hertz
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