placenta previa
noun
placenta pre·via
-ˈprē-vē-ə
plural placentae previae
-vē-ˌē
: 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
Cite this Entry
“Placenta previa.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/placenta%20previa. Accessed 7 Jul. 2026.
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