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decidua

American  
[dih-sij-oo-uh] / dɪˈsɪdʒ u ə /

noun

Embryology.
deciduas, plural deciduae plural
  1. the endometrium of a pregnant uterus that in many of the higher mammals is cast off at parturition.


decidua British  
/ dɪˈsɪdjʊə /

noun

  1. the specialized mucous membrane that lines the uterus of some mammals during pregnancy: is shed, with the placenta, at parturition

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

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Nouns

Etymology

Origin of decidua

1775–85; < New Latin, noun use of feminine of Latin dēciduus falling; see deciduous

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

The research showed that the decidua, the layer of the uterine lining that forms during pregnancy, and blood vessels, are sending different signals to the placenta when a pregnant person has placenta accreta.

From Science Daily Jan. 30, 2024

The maternal portion of the placenta develops from the deepest layer of the endometrium, the decidua basalis.

From Textbooks Jun. 19, 2013

The tearing away of the decidua at birth naturally causes the mother to lose a quantity of blood, which does not happen in the Indecidua.

From The Evolution of Man — Volume 2 by Haeckel, Ernst Heinrich Philipp August

The outer one of these is the inner lining of the womb itself, known as the decidua vera.

From What a Young Husband Ought to Know by Stall, Sylvanus

The folds by which it is surrounded then grow forward and their edges unite over the egg or ovum forming a sac—the decidua reflexa.

From Mother's Remedies Over One Thousand Tried and Tested Remedies from Mothers of the United States and Canada by Ritter, Thomas Jefferson

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