Lewis Short
altercātor (noun M) : altercor
* An orator who strives to conquer his antagonist by interrogatories, a disputant (cf. altercatio, II.): bonus altercator vitio iracundiae careat,Quint. 6, 4, 10; so id. 6, 4, 15; Front. Ver. Imper. 1.
Charlton T. Lewis, Charles Short, A Latin Dictionary