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{%type%} Definitions

WordNet 3.0Copyright Princeton University
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n. - The formation of the vascular structure in the uterus of most mammals providing oxygen and nutrients for and transferring wastes from the developing fetus

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Usage examples (30)
  • On the subject of placentation the following authors may be consulted:
  • The placentation is constantly axile in the inferior row and parietal in the upper one.
  • To Santalaceae they approach in processes, valvate corolla, and placentation, also to Loranthaceae.
  • The disjunction or dialysis of the carpels, for instance, frequently renders axile placentation marginal.
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We give special thanks to our LearnThat volunteers, as well as Princeton University and Wiktionary for their Open Source word data. We're also grateful for the support given by Google, Wordnik.com, Dictionary.com, Stands4.com and YouTube, OEDILF.com, Kylescholz.com, Best-Practice.com, Forvo.com, as well as the generous Creative Commons community.