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

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 William Thomas Councilman

It has been thought that the decidua of a particular menstrual period is related, not to the ovum discharged at that period, but to the ovum discharged at the preceding period.

From The Four Epochs of Woman's Life; a study in hygiene by Anna M. (Anna Mary) Galbraith

Within this is the decidua reflex, the membrane of the womb, which extended itself and grew around the ovum, completely enclosing it.

From What a Young Husband Ought to Know by Sylvanus Stall