Definition of "placentation" []

• Formation of a placenta in the uterus. (noun)
• The type or structure of a placenta. (noun)
• Botany Arrangement of placentas within the ovary. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Lucy did have one umbilical artery, and also at deliver, there was a little bit of abnormal placentation of the cord of the placenta."
• "Nurse Callan taken aback in the hallway cannot stay them nor smiling surgeon coming downstairs with news of placentation ended, a full pound if a milligramme."
• "First, we have in the bottom from which the mere structure of an ovary is deduced, the normal dicarpellary structure, and there is in addition a tendency in excess toward a parietal placentation."