The Collaborative International Dictionary
Polycotyledonary
Polycotyledonary \Pol`y*cot`y*led"on*a*ry\, a. [Poly- + cotyledonary.] (Anat.) Having the villi of the placenta collected into definite patches, or cotyledons.
Wiktionary
polycotyledonary
a. (context anatomy English) Having the villi of the placenta collected into definite patches, or cotyledons.