HyperDic: theta_wave

English > 1 sense of the expression theta wave:
NOUNphenomenontheta wave, theta rhythmthe normal brainwave in the encephalogram of a person who is awake but relaxed and drowsy
English > theta wave: 1 sense > noun 1, phenomenon
MeaningThe normal brainwave in the encephalogram of a person who is awake but relaxed and drowsy; occurs with low frequency and low amplitude.
Synonymtheta rhythm
Broaderbrainwave, 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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