Poly*coty*led"on*ous

from The Collaborative International Dictionary of English v.0.48

Polycotyledon \Pol`y*cot`y*le"don\, n. [Poly- + cotyledon: cf.
   F. polycotyl['e]done.] (Bot.)
   A plant that has many, or more than two, cotyledons in the
   seed. -- {Pol`y*cot`y*led"on*ous}, a.
   [1913 Webster]