脳のう波はのうはCommon wordFreq.FrequencyTop 50,000Meanings1nounbrain wavesGeneral term for the electrical activity of the brain, used in both scientific and everyday language.睡すい眠みん中ちゅうの脳のう波はを測そく定ていする。We measure brain waves during sleep.2nounelectroencephalogram; EEGmedicineMedical term for the recording of brain waves; often abbreviated as EEG.