Chorion (noun) Definition, Meaning & Examples

noun
  1. the outermost of the extraembryonic membranes of land vertebrates, contributing to the formation of the placenta in the placental mammals.
  2. the membrane around the eggs of certain insects, secreted by cells of the ovary.
noun
  1. the outer of two membranes that form a sac around the embryonic reptile, bird, or mammal: contributes to the placenta in mammals
    Chorion (noun) Definition, Meaning & Examples

    More Definitions