Lineal Descent
Defined in 4 dictionaries — Cyclopedic (1922), Ballentine's (1916), Black's (1910), Black's (1891)
The Cyclopedic Law Dictionary
Walter A. Shumaker and George Foster Longsdorf; ed. James C. Cahill · 1922
Descent in a right line, as where an estate descends from an-.cestor to heir in one line of succession, as opposed to collateral descent, which is descent in a transverse or zigzag line, namely, up through the common ancestor, and then down from him.
Ballentine's Law Dictionary
James A. Ballentine · 1916
Descent through those related by lineal consanguinity.
Black's Law Dictionary
Henry Campbell Black, M.A. · 1910
A Dictionary of Law
Henry Campbell Black · 1891
Descent in a right line, as where an estate descends from ancestor to heir in one line of succession, as opposed to collateral descent.