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
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
Historical Examples of aphtha
May not this disease be referred to aphtha, or to dysentery?Zoonomia, Vol. II
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.