Word.ws English Dictionary

hypernychthemeral

hypernychthemeral adjective: of or relating to a neurological sleep disorder characterized by one- to two-hour daily delays in sleep onset and wake times, i.e. a circadian rhythm greater than a nychthemeron (24 hours).

Adjective

hypernychthemeral (not comparable)

  1. Of or relating to a neurological sleep disorder characterized by one- to two-hour daily delays in sleep onset and wake times, i.e. a circadian rhythm greater than a nychthemeron (24 hours).

Origin of hypernychthemeral

From hyper- + nychthemeral.

Questions about hypernychthemeral

What does hypernychthemeral mean?
Hypernychthemeral means of or relating to a neurological sleep disorder characterized by one- to two-hour daily delays in sleep onset and wake times, i.e. a circadian rhythm greater than a nychthemeron (24 hours).
What part of speech is hypernychthemeral?
Hypernychthemeral is an adjective.

Words near hypernychthemeral in the dictionary

  1. hypernumber
  2. hypernumbers
  3. hypernutrified
  4. hypernutrition
  5. hypernutritional
  6. hypernychthemeral
  7. hypernym
  8. hypernymic
  9. hypernymically
  10. hypernymies
  11. hypernymous

Source and license

Adapted from Wiktionary: hypernychthemeral (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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