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单词 ultradian
释义

Definition of ultradian in English:

ultradian

adjective ʌlˈtreɪdɪənəlˈtrādēən
Physiology
  • (of a rhythm or cycle) having a period of recurrence shorter than a day but longer than an hour.

    Compare with infradian
    Example sentencesExamples
    • Failure to synchronize your patterns of activity and stimulation with your body's natural circadian and ultradian rhythms puts a stress on the system.
    • In addition, the timing of an ultradian rhythm, the defecation cycle, is lengthened compared to wild type.
    • These rhythmic contractions represent an ultradian cycle in worms that repeats every 47-50 sec and is controlled through inositol trisphosphate receptors in the posterior gut cells.
    • Still slower ultradian rhythms, with a period of 2 h, and circadian rhythms have also been observed.
    • In the book Rossi provides essential historical data along with two of the author's favorite topics, ultradian rhythms and the four-stage creative cycle of healing and problem resolution.

Origin

1960s: from ultra- 'beyond' (being of greater frequency than circadian) + -ian.

 
 

Definition of ultradian in US English:

ultradian

adjectiveəlˈtrādēən
Physiology
  • (of a rhythm or cycle) having a period of recurrence shorter than a day but longer than an hour.

    Compare with infradian
    Example sentencesExamples
    • Failure to synchronize your patterns of activity and stimulation with your body's natural circadian and ultradian rhythms puts a stress on the system.
    • These rhythmic contractions represent an ultradian cycle in worms that repeats every 47-50 sec and is controlled through inositol trisphosphate receptors in the posterior gut cells.
    • In the book Rossi provides essential historical data along with two of the author's favorite topics, ultradian rhythms and the four-stage creative cycle of healing and problem resolution.
    • In addition, the timing of an ultradian rhythm, the defecation cycle, is lengthened compared to wild type.
    • Still slower ultradian rhythms, with a period of 2 h, and circadian rhythms have also been observed.

Origin

1960s: from ultra- ‘beyond’ (being of greater frequency than circadian) + -ian.

 
 
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更新时间:2025/1/27 4:24:44