Meaning of decidua

de•cid•u•a

Pronunciation: (di-sij'-u), [key]
— pl. -cid•u•as, -cid•u•ae
  1. the endometrium of a pregnant uterus that in many of the higher mammals is cast off at parturition.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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