1) of or relating to pathology <a \pathological laboratory>
2) altered or caused by disease <\pathological tissue>
patho·log·i·cal·ly -i-k(ə-)lē adv
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adj.
relating to or arising from disease.
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patho·log·i·cal (path″o-lojґĭ-kəl) pathologic.Medical dictionary. 2011.