dictionary help| ultradian | medical dictionary |
Relating to biologic variations or rhythms occurring in cycles more frequent than every 24 hours.
Compare: circadian, infradian.
Origin: ultra-+ L. Dies, day
(05 Mar 2000)
ultracentrifugation, ultracentrifuge, ultracytostome < Prev | Next > ultradian rhythm, Ultra DMA, ultradolichocephalic
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