| Polycotyledon | n. [ Poly- + cotyledon: cf. F. polycotylédone. ] (Bot.) A plant that has many, or more than two, cotyledons in the seed. -- |
| Polycotyledonary | a. [ Poly- + cotyledonary. ] (Anat.) Having the villi of the placenta collected into definite patches, or cotyledons. [ 1913 Webster ] |