ultradian

ultradian definition - medical

ul·tra·di·an (ŭl-trāˈdē-ən)

adjective
Relating to or exhibiting periodic physiological activity that occurs more than once every 24 hours.

The American Heritage® Medical Dictionary Copyright © 2009 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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