rationale

noun

1. (law) an explanation of the fundamental reasons (especially an explanation of the working of some device in terms of laws of nature)
   • the rationale for capital punishment
   • the principles of internal-combustion engines
   Terjemahkan ke Indonesia sumber: wordnet30
2. An explanation or exposition of the principles of some opinion, action, hypothesis, phenomenon, or the like; also, the principles themselves.
   Terjemahkan ke Indonesia sumber: webster1913