placental

1 of 2

adjective

pla·​cen·​tal plə-ˈsen-tᵊl 

1

: of, relating to, having, or occurring by means of a placenta

2

: eutherian

placental

2 of 2

noun

: a placental mammal : eutherian

Examples of placental in a Sentence

Recent Examples on the Web

Adjective

The finale takes us straight to the hospital, where doctors inform Yancy that Ellie’s suffered a placental abrasion, putting both Ellie and the baby’s life at risk. — Barry Levitt, Time, 23 July 2026

In this study, published last month in Science, researchers found that as mice got close to the end of their pregnancies, placental levels of NAD+ and its precursors dropped off fast. — Maggie Ryan, Flow Space, 20 July 2026

Noun

Ellie is rushed to the hospital for her early labor, where doctors were luckily able to treat her placental abrasion and safely deliver the baby and keep Ellie healthy. — Caroline Blair, PEOPLE, 25 July 2026

The belly button belongs exclusively to the Eutheria, the placental mammals, and its presence is a direct consequence of their defining reproductive strategy. — Scott Travers, Forbes.com, 11 June 2026

Word History

First Known Use

Adjective

1785, in the meaning defined at sense 1

Noun

1839, in the meaning defined above

Rhymes for placental

• judgmental
• omental
• parental
• segmental
• tegmental
• accidental
• compartmental
• continental
• detrimental
• elemental
• fundamental
• governmental

Medical Definition

placental

1 of 2 adjective

pla·​cen·​tal -əl 

1

: of, relating to, having, involving, or produced by a placenta

placental lactogen

placental defects

2

: of or relating to placental mammals

placental

2 of 2 noun

: placental mammal