plural deciduomata
-mət-ə 
also deciduomas
also deciduomas
1
: a mass of tissue formed in the uterus following pregnancy that contains remnants of chorionic or decidual tissue
2
: decidual tissue induced in the uterus (as by trauma) in the absence of pregnancy
Cite this Entry
“Deciduoma.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/deciduoma. Accessed 31 Oct. 2025.
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