VILLI OF THE CHORION
\vˈɪla͡ɪ ɒvðə kˈɔːɹi͡ən], \vˈɪlaɪ ɒvðə kˈɔːɹiən], \v_ˈɪ_l_aɪ ɒ_v_ð_ə k_ˈɔː_ɹ_iə_n]\
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Syn. : chorionic villi. Cellular processes of fringes growing outward from the external surface of the vitelline membrane or the outer layer of the blastoderm and eventually covering the entire chorion. Only those confined to that portion of the chorion that forms the fetal part of the placenta become fully developed. [Lat.]
By Smith Ely Jelliffe
