| 释义 |
circadian, a.|sɜːˈkeɪdɪən|
[f. L. circa about + dies day + -an.]
Designating physiological activity which occurs approximately every twenty-four hours, or the rhythm of such activity.
1959F. Halberg in Zeitschr. f. Vitamin- Hormon- & Fermentforschung X. 235 ‘Circadian’ might be applied to all ‘24 hour’ rhythms, whether or not their periods..are different from 24 hours, longer or shorter, by a few minutes or hours. 1963J. Leith tr. Fraisse's Psychol. of Time i. 20 Circadian rhythms in animals, unlike plants, are almost always acquired. 1964Perceptual & Motor Skills XIX. 211 (heading) Circadian activity and noise comparisons of two confined groups with or without reference to clock time. Ibid., Both measures revealed highly positive correlations between the mean circadian patterns of the two groups. |