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placenta circumvallata in Medicine

placenta circumvallata

(sûr′kəm-və-lātə)
n.
  1. A cup-shaped placenta having raised edges and a thick, white, opaque ring around its periphery.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.