definition of
argumentation

[1] #1 argumentation n. [argument, debate] a discussion in which reasons are advanced for and against some proposition or proposal; "the argument over foreign aid goes on and on". wn

[2] #2 argumentation n. [logical argument, argument, line of reasoning, line] a course of reasoning aimed at demonstrating a truth or falsehood; the methodical process of logical reasoning; "I can't follow your line of reasoning". wn