/ (ˈæfθə) /

noun plural -thae (-θiː)

a small ulceration on a mucous membrane, as in thrush, caused by a fungal infection
vet science another name for foot-and-mouth disease

Derived forms of aphtha

aphthous, adjective

Word Origin for aphtha

C17: via Latin from Greek: mouth-sore, thrush
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Examples from the Web for aphtha

  • May not this disease be referred to aphtha, or to dysentery?

    Zoonomia, Vol. II|Erasmus Darwin

Medical definitions for aphtha

[ ăfthə ]

n. pl. aph•thae (-thē′)

A minute painful ulcer on a mucous membrane of the mouth, often covered by a gray or white exudate.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.