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rational
/ˈɹæʃ(ə)nəl/
noun
A rational number: a number that can be expressed as the quotient of two integers.
"The quotient of two rationals is again a rational."
adjective
Capable of reasoning.
"Man is a rational creature."
Logically sound; not contradictory or otherwise absurd.
"His statements were quite rational."
(of a person or personal characteristics) Healthy or balanced intellectually; exhibiting reasonableness.
"rational conduct"
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