Definition of chorion
English to English noun - the outermost membranous sac enclosing the embryo in higher vertebrates (reptiles, birds and mammals)
source: WordNet 3.0 - The outer membrane which invests the fetus in the womb; also, the similar membrane investing many ova at certain stages of development.
source: Webster 1913
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Nearby Word
chorion, chorine, coronion, cohorn, corona, chiron, charon, coroun, corn, coehorn, cruorin, corinne, crinion, charina, carrion, churn, crohn, car horn, crown, creon
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