Heterochromia iridum, which is a genetic condition characterized by the presence of different colored eyes, often sparks fascination and curiosity among people. However, there are several alternative names and synonyms for this condition, depending on various factors such as the color combination, the location, and the underlying causes. Some of the common synonyms for heterochromia iridum include dichromatic eyes, anisocoria, heterochromatic irides, and heterochromia of the iris. Other names may reflect the specific color combination, such as central heterochromia (when the inner circle of the iris is a different color), sectoral heterochromia (when a part of the iris is different), or complete heterochromia (when both eyes have entirely different colors).