Apparent heir
Black's Law Dictionary · Henry Campbell Black, M.A. · 1910
Black's Law Dictionary
In English law
One whose right of inheritance is indefeasible, provided he outlive the ancestor.
2 Bl. Comm. 208.
In Scotch law
He is the person to whom the succession has actually opened. He is so called until his regular entry on the lands by service or infeftment on a precept of dare constat.