Definition of polyspermal in US English:

polyspermal

adjective

Botany
rare
  • = polyspermous.

Origin

Late 19th century; earliest use found in Ogilvie's Imperial Dictionary. From ancient Greek πολύσπερμος abounding in seed + -al.

Pronunciation

polyspermal

/ˌpɒlɪˈspəːml/