单词	delta wave
释义	delta wave noun : a high amplitude electrical rhythm of the brain with a low frequency of less than four cycles per second that occurs especially in slow-wave sleep, is most prominent in infancy and early childhood, and may exhibit abnormal activity in various conditions (such as traumatic brain injury or dementia) called also delta, delta rhythm Word History First Known Use 1936, in the meaning defined above Medical Definition delta wave noun : a high amplitude electrical rhythm of the brain with a low frequency of less than four cycles per second that occurs especially in slow-wave sleep, is most prominent in infancy and early childhood, and may exhibit abnormal activity in various conditions (as traumatic brain injury or dementia) called also delta, delta rhythm
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