Mental defect
Defined in 1 dictionary — Black's (1910)
Black's Law Dictionary
Henry Campbell Black, M.A. · 1910
As applied to the qualification of a juror, this term must be understood to embrace either such gross ignorance or imbecility as practically disqualifies any person from performing the duties of a juror. Caldwell v. State, 41 Tex. 94.
Defined under Mental in Black's Law Dictionary.