from The American Heritage® Dictionary of the English Language, 4th Edition

  • adj. Characteristic or symptomatic of a particular disease or condition.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. diagnostic beyond any doubt for a particular disease.

from the GNU version of the Collaborative International Dictionary of English

  • adj. Specially or decisively characteristic of a disease; indicating with certainty a disease.

from The Century Dictionary and Cyclopedia

  • In medicine, indicating that by which a disease may be certainly known; hence, belonging to or inseparable from a disease, being found in it and in no other; characteristic: as, pathognomonic symptoms.


Greek pathognōmonikos : patho-, patho- + gnōmonikos, able to judge (from gnōmōn, interpreter; see gnō- in Indo-European roots).
(American Heritage® Dictionary of the English Language, Fourth Edition)



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