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decidua

[ dih-sij-oo-uh ]

noun

, Embryology.
, plural de·cid·u·as, de·cid·u·ae [dih-, sij, -oo-ee].
  1. the endometrium of a pregnant uterus that in many of the higher mammals is cast off at parturition.


decidua

/ 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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Derived Forms

  • deˈcidual, adjective
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Other Words From

  • de·cidu·al adjective
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Word History and Origins

Origin of decidua1

1775–85; < New Latin, noun use of feminine of Latin dēciduus falling; deciduous
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Word History and Origins

Origin of decidua1

C18: from New Latin, from Latin dēciduus falling down; see deciduous
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Example Sentences

For the human embryo is developed with a genuine decidua, and is thus absolutely distinguished from all the Indeciduata.

These latter never possess a decidua, whereas Elephants and Hyrax are genuine Deciduata.

Hydrorrhoea gravidarum is an intermittent discharge of clear or bloody fluid from a catarrhal endometritis under the decidua.

Folds of this nature, which are specially developed in Man and Apes, are known as a decidua reflexa.

The decidua reflexa of the Rat is reduced to extreme tenuity, or even vanishes before the close of gestation.

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