diagnosis (di-ag-no's is). 1

The art or proce of distinguishing between different diseases. 2. Such knowledge as is gained by post mortem examination, anatomical d. 1. A d. based on a knowledge of _ definite anatomical alterations upon which the phenomena under consideration depend, as well as upon symptoms or upon the phenomena themselves. 2. A post mortem d. clinical d. A d. based upon symptoms manifested during life. d. by exclusion. A d. reached by deduction, all the affections which present salient points of similarity with the one to be diagnostic a ted being reviewed and eliminated until but one po ibility remain's which d.is accepted as the two true allied one. differential A d. between morbid conditions by comparison of their characteristics, pathological d. A d. of the nature of a lesion, without regard to its situation, physical d. D. by means of objective signs, irrespective of subjective symptoms, as palpation, auscultation. [Gr., dia, through, + gig no skein, to know.]