'Quittor' definitions:

Definition of 'Quittor'

From: GCIDE

Quittor \Quit"tor\ (kw[i^]t"t[~e]r), n. [Perhaps for quitture.] (Far.) A chronic abscess, or fistula of the coronet, in a horse's foot, resulting from inflammation of the tissues investing the coffin bone. [1913 Webster]