ultradian en · ADJ
Meanings
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(not-comparable) Cyclical with a periodicity significantly shorter than 24 hours, that is, more frequent than circadian.
Ultradian rhythms […] operate in cycles of less than 24 hours, that is they happen more than once a day.
1999, Evie Bentley, Awareness: Biorhythms, Sleep and Dreaming, page 15:
Relateds
Translations (1)
fr ultradien (Translations)