What does "clinical" mean?

Clinical: Of or pertaining to a clinic, or to the study of disease in the living subject. Clinical baptism, baptism administered to a person on a sick bed. -- Clinical instruction, instruction by means of clinics. -- Clinical lecture (Med.), a discourse upon medical topics illustrared by the exhibition and examination of living patients. -- Clinical medicine, Clinical surgery, that part of medicine or surgery which is occupied with the investigation of disease in the living subject.