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Definitions

placenta

[pluh-sen-tuh] / pləˈsɛn tə /


NOUN
membrane
Synonyms


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

"This finding also reinforces our commitment to developing antidepressants that do not reach the placenta -- a focus of many of our studies right now."

From Science Daily • Mar. 17, 2026

It's a rare and potentially life-threatening condition when twins share one placenta.

From BBC • Feb. 3, 2026

Late in her third trimester, doctors diagnosed her with placenta accreta, a potentially life-threatening condition in which the placenta grows too far into the wall of the uterus.

From The Wall Street Journal • Dec. 28, 2025

In an ectopic pregnancy, the placenta can’t safely grow, increasing the chances of maternal bleeding and fetal death, according to the release.

From Los Angeles Times • Dec. 12, 2025

In experimental animals the chlorinated hydrocarbon insecticides freely cross the barrier of the placenta, the traditional protective shield between the embryo and harmful substances in the mother’s body.

From "Silent Spring" by Rachel Carson




Vocabulary lists containing placenta