premenstruum

noun
pre·​men·​stru·​um | \ -ˈmen(t)-strə-wəm How to pronounce premenstruum (audio) \
plural premenstruums or premenstrua\ -​strə-​wə How to pronounce premenstruum (audio) \

Medical Definition of premenstruum

: the period or physiological state that immediately precedes menstruation

Learn More About premenstruum

Dictionary Entries Near premenstruum

premenstrual tension

premenstruum

premie

See More Nearby Entries 

Cite this Entry

“Premenstruum.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/premenstruum. Accessed 1 Dec. 2021.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon

WORD OF THE DAY

Test Your Vocabulary

Name that Thing: Flower Edition

How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!