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placentation
/ ˌplæsɛnˈteɪʃən /
noun
- botany the way in which ovules are attached in the ovary
- zoology
- the way in which the placenta is attached in the uterus
- the process of formation of the placenta
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Word History and Origins
Origin of placentation1
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Example Sentences
To Santalaceæ they approach in processes, valvate corolla, and placentation, also to Loranthaceæ.
From Project Gutenberg
In the flowers of Saponaria officinalis Dr. Masters has observed instances of both marginal and free central placentation.
From Project Gutenberg
The disjunction or dialysis of the carpels, for instance, frequently renders axile placentation marginal.
From Project Gutenberg
In double flowers of Primulaceæ similar alterations in the placentation may often be observed.
From Project Gutenberg
The same excellent observer has recorded the occurrence of free central placentation in malformed flowers of Trifolium repens.
From Project Gutenberg
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