Definition of superfetation
: a progressive accumulation or accretion reaching an excessive degree
Recent Examples of superfetation from the Web
The difference in their size was obvious in the first trimester of pregnancy and continued, leading the doctor to offer superfetation as a diagnosis.
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Medical Definition of superfetation
: successive fertilization of two or more ova of different ovulations resulting in the presence of embryos of unlike ages in the same uterus
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