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aphtha Syllabification: aph·tha
Pronunciation: /ˈafTHə/

Definition of aphtha in English:

noun (plural aphthae-THē)

1A small ulcer occurring in groups in the mouth or on the tongue.
Example sentences
  • Several conditions should be considered in the differential diagnosis when evaluating patients with recurrent aphthae.
  • Recurrent aphthae constitute the most common oral mucosal disease and affects up to 25% of the population.
  • Herpetiform aphthae often appear in the back of the mouth, and usually heal within a month.
1.1A condition in which aphthae occur.
Example sentences
  • The preventive action against development of sores caused by a new denture or against aphtha is also effective.
  • Which food would you recommend for someone suffering from aptha?


Mid 17th century: via Latin from Greek, connected with haptein 'set on fire'.



Example sentences
  • Also known as aphthous ulcers or aphthous stomatitis, canker sores are small sores that can occur inside a person's mouth, cheeks, lips, throat, or sometimes on the tongue.
  • The medical term for canker sores is aphthous ulcers.
  • He also had painful aphthous ulceration of his oral mucosa and genitalia.

Definition of aphtha in:

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Word of the day innocuous
Pronunciation: iˈnäkyo͞oəs
not harmful or offensive