Definitions

from The Century Dictionary.

  • noun In pathology, an eruption; an ulceration: used especially in the plural to denote small round ulcers, sometimes becoming confluent, and said in some cases to be preceded by vesicles which break.

from the GNU version of the Collaborative International Dictionary of English.

  • noun One of the whitish specks called aphthæ.
  • noun The disease, also called thrush.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun medicine thrush (the disease)

Etymologies

from Wiktionary, Creative Commons Attribution/Share-Alike License

From Ancient Greek ἄφθα (mouth ulcer)

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Examples

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  • A minute painful ulcer on a mucous membrane of the mouth, often covered by a gray or white exudate.

    October 9, 2007