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Medical Definition of Foetal cotyledon
1. A unit of the foetal placenta supplied by the vessels of a stem villus; several such cotyledon's may occur between two placental septa; traditionally called embryologists' cotyledon. (05 Mar 2000)
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1. A unit of the foetal placenta supplied by the vessels of a stem villus; several such cotyledon's may occur between two placental septa; traditionally called embryologists' cotyledon. (05 Mar 2000)