Dictionary.com
definitions
  • synonyms
placental barrier in Medicine

placental barrier

n.
  1. The semipermeable layer of tissue in the placenta that serves as a selective membrane to substances passing from maternal to fetal blood.
Show More
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.