Cotyledonal :: Cotyledonal (a.) Of, pertaining to, or resembling, a cotyledon..
Cotyledonary :: Cotyledonary (a.) Having a cotyledon; tufted; as, the cotyledonary placenta of the cow..
Polycotyledonary :: Polycotyledonary (a.) Having the villi of the placenta collected into definite patches, or cotyledons..