Source : Webster's Revised Unabridged Dictionary (1913)

Pathologic \Path`o*log"ic\, Pathological \Path`o*log"ic*al\, a.
   (Med.)
   Morbid; due to disease; abnormal; as, pathological tissue; a
   pathological condition.

Pathologic \Path`o*log"ic\, Pathological \Path`o*log"ic*al\, a.
   [Gr. ?: cf. F. pathologique.]
   Of or pertaining to pathology. -- {Path`o*log"ic*al*ly}, adv.

Source : WordNet®

pathologic
     adj 1: caused by or altered by or manifesting disease or pathology;
            "diseased tonsils"; "a morbid growth"; "pathologic
            tissue"; "pathological bodily processes" [syn: {diseased},
             {morbid}, {pathological}]
     2: of or relating to the practice of pathology; "pathological
        laboratory" [syn: {pathological}]