Definition of Placenta, accessory
Placenta, accessory: A condition in which there is an extra placenta that is separate from the main placenta. Also known as a succenturiate or supernumerary placenta.
Source: MedTerms™ Medical Dictionaryhttp://www.medterms.com/script/main/art.asp?articlekey=4919
Last Editorial Review: 3/19/2012
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