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 condition increases the risk of serious complications including placental abruption, in which the placenta separates from the uterus before delivery. — Faye Chiu, CNN Money, 21 Aug. 2026

Compared to younger women, older moms are at higher risk of complications like preeclampsia, gestational diabetes, placental abnormalities, miscarriage chromosomal conditions and cesarean delivery. — Helen Carefoot, Flow Space, 29 July 2026

Noun

An abnormal increase in a protein called sFlt-1 (soluble fms-like tyrosine kinase 1), which slows down placental growth, Kilpatrick says. — Megha Satyanarayana, Scientific American, 2 Sep. 2026

Excess maternal sugar could also lead to insulin resistance and placental impairment, which can impact nutrient delivery and influence fetal brain development, says Sullivan. — Emily Kay Votruba, EverydayHealth.com, 29 July 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