Eligible voters

The universe of all voters who, if they cast a ballot, would have the legal right to have eligible contests on that ballot tabulated. This would include those who do not appear in the list of eligible voters because they live in a same-day registration or no registration state and did not or could not register ahead of time.

Source: Election Terminology Glossary - Draft, National Institute of Standards and Technology (NIST), https://pages.nist.gov/ElectionGlossary/