The structural organization and mode of attachment of fetal to maternal tissues in the formation of the placenta. Types of p. are defined under placenta.
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pla·cen·ta·tion .plas-ən-'tā-shən, plə-.sen- n
1) the development of the placenta and attachment of the fetus to the uterus during pregnancy
2) the morphological type of a placenta
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plac·en·ta·tion (plas″ən-taґshən) the process of placenta formation and the result, especially with respect to taxonomically relevant aspects of structure. See placenta.Medical dictionary. 2011.