Function: noun
Date: 1936
: an electrical rhythm of the brain with a frequency of approximately 8 to 13 cycles per second that is often associated with a state of wakeful relaxation ― called also alpha alpha rhythm
ALPHA WAVE
Meaning of ALPHA WAVE in English
Merriam Webster Collegiate English Dictionary. Merriam Webster - Энциклопедический словарь английского языка. 2012