Dictionary
ul•cer•ate
Pronunciation: (ul'su-rāt"), [key]
—v., -at•ed, -at•ing.
—
v.i.
to form an ulcer; become ulcerous:
His skin ulcerated after exposure to radioactive material.
—
v.t.
to cause an ulcer on or in:
Continued worry ulcerated his stomach. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.