noun which may take the genitive case particle 'no'
prezygotic
Technical term in biology referring to the stage before the fusion of gametes. Used attributively with の.
Prezygotic reproductive isolation plays an important role in speciation.
Compound of 接合 (setsugō, 'conjugation; fusion') + 前 (zen, 'before'). The exact historical derivation is uncertain; the term is a modern scientific coinage.