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Medical Definition of K complex
1. High amplitude, diphasic frontocental slow waves in the electroencephalogram related to arousal from sleep by a sound; characteristic of sleep stages 2, 3, and 4. (05 Mar 2000)
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1. High amplitude, diphasic frontocental slow waves in the electroencephalogram related to arousal from sleep by a sound; characteristic of sleep stages 2, 3, and 4. (05 Mar 2000)