Double Possibility
Defined in 4 dictionaries — Cyclopedic (1922), Ballentine's (1916), Bouvier (1914), Black's (1891)
The Cyclopedic Law Dictionary
Walter A. Shumaker and George Foster Longsdorf; ed. James C. Cahill · 1922
A possibility based or dependent on another possibility. Used ordinarily in respect to the creation of contingent trusts and remainders. Thus, a bequest to testator's unborn "child" is valid, resting on a single possibility; while one to his unborn "son" is invalid, the possibility being double.
Ballentine's Law Dictionary
James A. Ballentine · 1916
A. possibility founded upon another possibility.
Bouvier's Law Dictionary and Concise Encyclopedia
John Bouvier; revised by Francis Rawle · 1914
A possibility upon a possibility. 2 Bla. Com. 170. See Contingent Remainder.
A Dictionary of Law
Henry Campbell Black · 1891
A possibility upon a possibility, 2 Bl. Comm. 170.