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.

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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

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Other Word Forms

Derived Forms

• decidual
  adjective

Inflected Forms

Nouns

• deciduae
  plural
• deciduas
  plural

Etymology

Origin of decidua

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

Example Sentences

See Examples For:

decidua

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

This seems to be the most reasonable view of menstruation; i.e., as an abortion of a decidua.

From Studies in the Psychology of Sex, Volume 1 The Evolution of Modesty; The Phenomena of Sexual Periodicity; Auto-Erotism by Ellis, Havelock

In rare instances auto-infection may result from spontaneous decomposition of the lochia, of bits of decidua, of coagula of blood, of necrosed tissue, or in consequence of severe instrumental labors.

From A System of Practical Medicine by American Authors, Vol. I Volume 1: Pathology and General Diseases by Various

The peculiar tissue growth within the uterus called decidua, which occurs normally in pregnancy and serves to fasten the developing ovum to the inner lining of the uterus, may be produced experimentally.

From Disease and Its Causes by Councilman, William Thomas