Anisogamic is a term used to describe a type of reproduction where there are distinct male and female sexes. Synonyms for this word include heterogamous, dimorphic, and unisexual. Heterogamous refers to a type of reproduction where two different types of gametes, typically male and female, come together to create offspring. Dimorphic, on the other hand, refers to a species that has two distinct forms of individuals, male and female. Unisexual describes a species that has only one sex. These synonyms help to describe the numerous ways in which reproduction occurs in the animal kingdom and provide scientists and researchers with a lexicon to discuss these topics.