LESION (through Fr. from Lat. laesio, injury, laedere, to hurt), an injury, hurt, damage. In Scots law the term is used of lamage suffered by a party in a contract sufficient to enable lim to bring an action for setting it aside. In pathology, the :hief use, the word is applied to any morbid change in the tructure of an organ, whether shown by visible changes or by tisturbance of function.
Note - this article incorporates content from Encyclopaedia Britannica, Eleventh Edition, (1910-1911)