Anisogametic is a term that refers to the biological process where two gametes of different sizes unite to form a zygote. Anisogamy describes the phenomenon where male and female gametes are of different sizes. Synonyms for anisogametic include heterogamic, heterogametic, and anisogamous. These terms describe the same process of fertilization where different-sized gametes merge. Other synonyms include oogamous, bigametic, and male-female system. Anisogametes are commonly found in many living organisms where the process of sexual reproduction takes place. Understanding different synonyms for anisogametic is crucial for scientists and biologists who study and research areas related to sexual reproduction.