merogamy
/mɪˈrɒɡəmi/Biology
noun
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.