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