placenta previa

noun
placenta pre·​via | \ -ˈprē-vē-ə How to pronounce placenta previa (audio) \
plural placentae previae\ -​vē-​ˌē How to pronounce placentae previae (audio) \

Medical Definition of placenta previa

: an abnormal implantation of the placenta at or near the internal opening of the uterine cervix so that it tends to precede the child at birth usually causing severe maternal hemorrhage

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Cite this Entry

“Placenta previa.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/placenta%20previa. Accessed 20 Oct. 2020.

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