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Definitions from WordNet

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Parietal Placentation

Definition:

Parietal placentation refers to the arrangement and attachment of the placenta in a plant's ovary.

Senses:

Sense 1:

Botanical sense: Parietal placentation is a type of placentation where the ovules are attached to the inner walls or partitions of the ovary.

Example: In a lily flower, parietal placentation can be observed as the ovules are attached to the outer walls of the ovary.

Sense 2:

Zoological sense: Parietal placentation is the arrangement of the placenta on the uterine wall in some mammals.

Example: In humans, parietal placentation allows the placenta to firmly attach to the uterine wall, enabling nutrient and waste exchange between the mother and the fetus.

Usages:

Usage 1:

Botany: Parietal placentation is an important characteristic used in classifying and identifying various plant species.

Example: The parietal placentation found in the hibiscus flower helps botanists categorize it as a member of the Malvaceae family.

Related products on Amazon: Botanical classification books

Usage 2:

Zoology: Understanding parietal placentation aids in studying reproductive physiology and evolution in mammals.

Example: Researchers explore the advantages and disadvantages of parietal placentation compared to other types, such as discoid or zonary placentation.

Related products on Amazon: Mammalian reproductive physiology books