RATIONALE
rationale, principle
(noun) (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”
Source: WordNet® 3.1
Etymology 1
Noun
rationale (plural rationales or rationalia)
An explanation of the basis or fundamental reasons for something.
A justification or rationalization for something.
Synonyms
• (explanation): reasoning, rationalization
• (justification): reasoning
Etymology 2
Noun
rationale (plural rationales)
(rare, religion) A liturgical vestment worn by some Christian bishops of various denominations.
Anagrams
• alienator, taeniolar
Source: Wiktionary
Ra`tion*a"le, n. Etym: [L. rationalis, neut. rationale. See Rational,
a.]
Definition: An explanation or exposition of the principles of some opinion,
action, hypothesis, phenomenon, or like; also, the principles
themselves.
Source: Webster’s Unabridged Dictionary 1913 Edition