The term "eligible voters" refers to individuals who meet certain criteria that allow them to participate in voting for a particular election or referendum. These criteria can vary depending on the specific rules and regulations set by each country, but generally speaking, eligibility requirements may include being at least 18 years old, having legal residency within a given jurisdiction, and not having any criminal convictions that would disqualify them from voting. In other words, "eligible voters" are those individuals who have the right to cast their ballot in an election or referendum, based on established rules and guidelines.