oligomenorrhea
noun
oli·go·men·or·rhea
variants
or chiefly British oligomenorrhoea
: abnormally infrequent or scanty menstrual flow
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“Oligomenorrhea.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/oligomenorrhea. Accessed 13 Jul. 2025.
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