Definition of infradian in English:
(Of a rhythm or cycle) having a period of recurrence longer than a day; occurring less than once a day. Compare with ultradian.
- The crayfish Procambarus clarkii is a nocturnal organism that displays a span of overt circadian and infradian rhythms to adapt to daily and seasonal environmental lighting changes.
- The circadian rhythm resides with an infradian rhythm of lunar 28-day cycles, seasonal cycles of cold and hot as well as shifting light and dark.
- In this paper, a presumptive role for infradian hormonal rhythms is considered.
mid 20th century: from infra- 'below' (i.e., expressing a lower frequency), on the pattern of circadian.
Definition of infradian in:
- British & World English dictionary
What do you find interesting about this word or phrase?
Comments that don't adhere to our Community Guidelines may be moderated or removed.
Most popular in the US
Most popular in Australia
Most popular in Malaysia
Most popular in Pakistan