circ·an·nu·al
| \ (ˈ)sər-ˈkan-yə(-wə)l
\
\
Medical Definition of circannual
: having, characterized by, or occurring in approximately yearly periods or cycles (as of biological activity or function)
circannual rhythmicity
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“Circannual.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/circannual. Accessed 23 Sep. 2021.
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