ultradian
Jump to navigation
Jump to search
English
[edit]Adjective
[edit]ultradian (not comparable)
- Cyclical with a periodicity significantly shorter than 24 hours, that is, more frequent than circadian.
- 1999, Evie Bentley, Awareness: Biorhythms, Sleep and Dreaming, page 15:
- Ultradian rhythms […] operate in cycles of less than 24 hours, that is they happen more than once a day.