dialectic
1. [ noun ] (philosophy) any formal system of reasoning that arrives at the truth by the exchange of logical arguments
Related terms: philosophy
2. [ noun ] a contradiction of ideas that serves as the determining factor in their interaction
Examples:

"this situation created the inner dialectic of American history"

Related terms: contradiction
3. [ adjective ] of or relating to or employing dialectic
Synonyms: dialectical
Examples:

"the dialectical method"

Similar spelling:   dialectics
  dialectical
  dialect
  dialectician
  dielectric
  dialectal