allantochorion /al·lan·to·cho·ri·on/ (ah-lan″to-kor´e-on) a compound membrane formed by fusion of the allantois and chorion.
al·lan·to·cho·ri·on ( -l n t -kôr  - n)n. The extraembryonic membrane formed by the fusion of the allantois and the chorion. |
allantochorion
the fused or juxtaposed parts of the allantois and chorion as one structure. See also vitellochorion.
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