aphthae majores

aphthae ma·jo·res

(mə-jôr′ēz)
n.
A severe form of aphthae characterized by large numerous, frequently occurring ulcers that may take up to six weeks to heal. Also called Mikulicz' aphthae.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.