placentation

• Nom désignant la formation et la disposition du placenta chez les mammifères, ou la disposition des ovules dans l'ovaire chez les plantes.

A noun referring to the formation and arrangement of the placenta in the uterus, or the arrangement of ovules within the ovary.

indénombrable

1. Formation of the placentaC2formalmedical

   The process of formation and development of the placenta in the uterus during pregnancy.

   Placentation

   • Placentation begins shortly after the embryo implants in the uterine wall.
   • Abnormal placentation can lead to complications during pregnancy.
   • The study focused on the molecular mechanisms of placentation in mammals.

2. C2formalscientific

   The arrangement of ovules within the ovary of a plant, specifically how they are attached to the placenta.

   Placentation

   • Botanists classify plants based on their type of placentation.
   • The placentation in this species is parietal, with ovules attached to the ovary wall.
   • Axile placentation is common in many flowering plants.