Physical incapacity
Black's Law Dictionary · Henry Campbell Black, M.A. · 1910
Black's Law Dictionary
In the law of marriage and divorce, impotence, inability to accomplish sexual coition, arising from incurable physical imperfection or malformation.
Anonymous, 89 Ala. 291, 7 South. 100, 7 L. R. A. 425, 18 Am. St. Rep 116; Franke v. Franke (Cal.) 31 Pac. 574, 18 In R. A. 375.