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hemoendothelial placenta in Medicine

hemoendothelial placenta

(hē′mō-ĕn′dō-thēlē-əl)
n.
  1. A placenta in which the trophoblast becomes so attenuated that maternal blood is separated from fetal blood only by the endothelium of the chorionic capillaries.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.