Definition of mesogenous in English:

mesogenous

Pronunciation /mɪˈsɒdʒɪnəs/ /mɛˈsɒdʒɪnəs/

adjective

Botany
  • Designating or relating to a type of stomatal development in which a single meristem cell gives rise to both guard cells and subsidiary cells.

Origin

Late 19th century (in an earlier sense). From meso- + -genous.