delta-wave

英['deltəw'eɪv] 美['deltəw'eɪv]
  • δ波,Δ波
  • delta n.(河流的)三角洲;希腊语第四个字母(Δ、δ)
  • mirage n.海市蜃楼;幻想
名词 delta wave:
  1. the normal brainwave in the encephalogram of a person in deep dreamless sleep; occurs with high voltage and low frequency (1 to 4 hertz)