his·to·pa·thol·o·gist
ˌhis-tō-pə-ˈthäl-ə-jəst, -pa-
: a pathologist who specializes in the detection of the effects of disease on body tissues
especially
: one who identifies tumors by their histological characteristics
his·to·pa·thol·o·gy
ˌhis-tō-pə-ˈthäl-ə-jē, -pa-
plural histopathologies
1
: a branch of pathology concerned with the tissue changes characteristic of disease
2
: the tissue changes that affect a part or accompany a disease
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Merriam-Webster unabridged



