de·cid·u·a
(dĭ-sĭj′o͞o-ə)n. pl. de·cid·u·as or de·cid·u·ae (-o͞o-ē′)
A mucous membrane lining the uterus, modified during pregnancy and shed at parturition or during menstruation.
[New Latin (membrāna) dēcidua, (membrane) that falls off, from Latin dēciduus, falling off; see deciduous.]
de·cid′u·al adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
decidua
(dɪˈsɪdjʊə)n, pl -ciduas or -ciduae (-ˈsɪdjʊˌiː)
(Zoology) the specialized mucous membrane that lines the uterus of some mammals during pregnancy: is shed, with the placenta, at parturition
[C18: from New Latin, from Latin dēciduus falling down; see deciduous]
deˈcidual, deˈciduate adj
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
de•cid•u•a
(dɪˈsɪdʒ u ə)n., pl. -cid•u•as, -cid•u•ae (-ˈsɪdʒ uˌi)
the endometrium of a pregnant uterus, cast off at parturition.
[1775–85; < New Latin < Latin dēciduus falling; see deciduous]
de•cid′u•al, adj.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
| Noun | 1. |  decidua - the epithelial tissue of the endometriumepithelial tissue, epithelium - membranous tissue covering internal organs and other internal surfaces of the body endometrium - (pregnancy) the mucous membrane that lines the uterus; thickens under hormonal control and (if pregnancy does not occur) is shed in menstruation; if pregnancy occurs it is shed along with the placenta at parturition |
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