decidua

noun
de·​cid·​ua | \ di-ˈsi-jə-wə How to pronounce decidua (audio) , -jü-ə \
plural deciduae\ di-​ˈsi-​jə-​ˌwē How to pronounce decidua (audio) , -​jü-​ˌē \

Definition of decidua

1 : the part of the endometrium that in higher placental mammals undergoes special modifications in preparation for and during pregnancy and is cast off at parturition
2 : the part of the endometrium cast off in the process of menstruation

Other Words from decidua

decidual \ di-​ˈsi-​jə-​wəl How to pronounce decidua (audio) , -​jü-​əl \ adjective

First Known Use of decidua

1785, in the meaning defined at sense 1

History and Etymology for decidua

New Latin, from Latin, feminine of deciduus

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The first known use of decidua was in 1785

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Dictionary Entries Near decidua

deciding factor

decidua

decidual cell

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Cite this Entry

“Decidua.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/decidua. Accessed 29 Jul. 2021.

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More Definitions for decidua

decidua

noun
de·​cid·​ua | \ di-ˈsij-ə-wə How to pronounce decidua (audio) \
plural deciduae\ -​ˌwē How to pronounce decidua (audio) \

Medical Definition of decidua

1 : the part of the mucous membrane lining the uterus that in higher placental mammals undergoes special modifications in preparation for and during pregnancy and is cast off at parturition, being made up in the human of a part lining the uterus (see decidua parietalis), a part enveloping the embryo (see decidua capsularis), and a part participating with the chorion in the formation of the placenta (see decidua basalis)
2 : the part of the mucous membrane of the uterus cast off in the ordinary process of menstruation

Other Words from decidua

decidual \ -​ə-​wəl How to pronounce decidua (audio) \ adjective

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