n A corrode | corroding or sloughing ulcer; especially a spreading gangrenous ulcer or collection of ulcers in or about the mouth.
n An obstinate and often incurable disease of a horse's foot, characterized by separation of the horny portion and the development of fungoid growths. Usually resulting from neglected thrush.
n An avian disease affecting doves, poultry, parrots but also birds of prey caused by Trichomonas gallinae