Medical Dictionary


adj ra·tio·nal \ˈrash-nəl, -ən-əl\

Medical Definition of RATIONAL

a :  having reason or understanding b :  relating to, based on, or agreeable to reason <a rational explanation> <rational behavior>
:  using medical treatments based on reason or general principles—used especially of an ancient school of physicians; compare empirical 1a
ra·tio·nal·ly \-ē\ adverb
How to use a word that (literally) drives some people nuts.
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