A / altercātor
noun

altercātor

gen. altercātōris · gender masculine · decl. 3rd
an orator who strives to conquer his antagonist by interrogatories; a disputant
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.