argumentation
1. [ noun ] a discussion in which reasons are advanced for and against some proposition or proposal
Synonyms: debate argument
Examples:

"the argument over foreign aid goes on and on"

Related terms: discussion argue argue argue
2. [ noun ] (psychology) the methodical process of logical reasoning
Synonyms: line line_of_reasoning logical_argument
Examples:

"I can't follow your line of reasoning"

Related terms: reasoning policy line_of_inquiry casuistry argue
Similar spelling:   argumentative
  argumentatively
  archenteron