premenstruum
noun
pre·men·stru·um
-ˈmen(t)-strə-wəm 
plural premenstruums or premenstrua
-strə-wə
: the period or physiological state that immediately precedes menstruation
Dictionary Entries Near premenstruum
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“Premenstruum.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/premenstruum. Accessed 22 Dec. 2024.
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