Word.ws English Dictionary

infradian

infradian adjective: cyclical with a periodicity significantly longer than 24 hours, that is, less frequent than circadian.

Adjective

infradian (not comparable)

  1. Cyclical with a periodicity significantly longer than 24 hours, that is, less frequent than circadian.

Origin of infradian

Uncertain. Possibly from the Latin infra (“below”) and diēs (“a day”) with the English suffix -an. Compare circadian, ultradian, and infra etc.

Questions about infradian

What does infradian mean?
Infradian means cyclical with a periodicity significantly longer than 24 hours, that is, less frequent than circadian.
What part of speech is infradian?
Infradian is an adjective.

Words near infradian in the dictionary

  1. infractors
  2. infracts
  3. infradental
  4. infradentaries
  5. infradentary
  6. infradian
  7. infradiaphragmatic
  8. infradiapophyseal
  9. infradigital
  10. infradivision
  11. infradivisions

Source and license

Adapted from Wiktionary: infradian (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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