Definition of merogamy in US English:

merogamy

noun

Biology
  • Originally: the production of gametes that are smaller and of a different structure than vegetative cells of the same organism (obsolete). In later use: merogony, especially that resulting in the production of gametes or gamonts.

Origin

Early 20th century (in an earlier sense). From French mérogamie from méro- + -gamie.

Pronunciation

merogamy

/mɪˈrɒɡəmi/