Psoriasis: The most common skin disorder that also affects the joints, including the knees, is psoriasis. Although certainly not all patients with psoriasis will develop joint problems, psoriatic arthritis may cause knee pain and swelling. ...Read more.
Definition of accident. 1  1a : an unforeseen and unplanned event or circumstance Their meeting was an accident.b : lack of intention or necessity : chance They met by accident rather than by design.
Accidents  here mean ordinary accidents only, such as hail, lightning or frost, and the lessee will not be answerable for loss caused by extraordinary accidents such as war or floods, unless he has, been made liable for all accidents, foreseen or unforeseen (Art.