from The Century Dictionary.

  • noun In embryology, the presumably primitive form of the mammalian chorion, characterized by a uniform covering of villi.


Sorry, no etymologies found.


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  • But in the third sub-class of the mammals the serolemma forms, by invagination at its outer surface, a number of hollow tufts or villi, from which it takes the name of the chorion or mallochorion.

    The Evolution of Man — Volume 1 Ernst Heinrich Philipp August Haeckel 1876


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