In tbe civil law. The avoidance of a sale on acconnt of some vice or defect in the thing sold, whlch renders it either absolutely' useless or its use so in-convenient and imperfect that it must be supposed that the buyer would not have pur-chased it had he known of the vice. Civ; Code La. art 2520
Source: Black's Law Dictionary 2nd Ed (1910)