| polycotyledon | <botany> A plant that has many, or more than two, cotyledons in the seed. Polycotyled"onous. Origin: Poly- + cotyledon: cf. F. Polycotyledone. Source: Websters Dictionary (01 Mar 1998) |
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| polycotyledonary | <anatomy> Having the villi of the placenta collected into definite patches, or cotyledons. Origin: Poly- + cotyledonary. Source: Websters Dictionary (01 Mar 1998) |