(Of a sign or symptom) specifically characteristic or indicative of a particular disease or condition.
- Point tenderness, a pathognomonic sign of a bone lesion, can be used to localize the fracture.
- Few tests yield results that are pathognomonic for particular diseases.
- Even though they are pathognomonic for the disease, their absence should not exclude the diagnosis.
Early 17th century: from Greek pathognōmonikos 'skilled in diagnosis', from pathos 'suffering' + gnōmōn 'judge'.
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