DROWSINESS
\dɹˈa͡ʊsɪnəs], \dɹˈaʊsɪnəs], \d_ɹ_ˈaʊ_s_ɪ_n_ə_s]\
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Periods of sleep manifested by changes in EEG activity and certain behavioral correlates; includes Stage 1: sleep onset, drowsy sleep; Stage 2: light sleep; Stages 3 and 4: delta sleep, light sleep, deep sleep, telencephalic sleep.
By DataStellar Co., Ltd
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Sleepiness; sluggishness.
By William Dodge Lewis, Edgar Arthur Singer
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