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from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. The characteristic of being most active and alert during the evening; being a night owl.


evening +‎ -ness (Wiktionary)


  • There was an unmistakable dressed-up eveningness about them both.

    We Can't Have Everything

  • Sleep researchers at Stanford University found that people with one genotype had an increased preference for eveningness, while the other genotype had an increased preference for morningness.

  • (verified by sleep logs and wrist actigraphy for at least one week before study entry); absence of extreme morningness or extreme eveningness, as assessed by questionnaire

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  • Read on site A self-assessment questionnaire to determine morningness-eveningness in human circadian rhythms ".

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