Dictionary

rationality

noun ra·tio·nal·i·ty \ˌra-shə-ˈna-lə-tē\
plural ra·tio·nal·i·ties

Definition of RATIONALITY

1
:  the quality or state of being rational
2
:  the quality or state of being agreeable to reason :  reasonableness
3
:  a rational opinion, belief, or practice —usually used in plural

First Known Use of RATIONALITY

1628

rationality

noun ra·tio·nal·i·ty \ˌrash-ə-ˈnal-ət-ē\   (Medical Dictionary)
plural ra·tio·nal·i·ties

Medical Definition of RATIONALITY

1
:  the quality or state of being rational
2
:  the quality or state of being agreeable to reason

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