"Rational" is a word in ENGLISH

A process of reasoning, or a controversy made up of rational proofs; argumentation; discussion; disputation.

That which follows from propositions by rational deduction; that which is deduced from reasoning or argumentation; a conclusion, or inference.

Of suit to a mill. A writ which lay to compel one to continue his custom (of grinding) at a …

Not rational; void of reason or understanding; as, brutes are irrational animals.

The intellectual or rational faculty in man; the understanding; the intellect; the power that conceives, judges, or reasons; also, the …

Lat For the like reason; by like mode of reasoning

To reason like a philosopher; to search into the reason and nature of things; to investigate phenomena, and assign rational …

The doctrine or system of those who deduce their religious opinions from reason or the understanding, as distinct from, or …

One who accepts rationalism as a theory or system; also, disparagingly, a false reasoner. See Citation under Reasonist.

The quality or state of being rational; agreement with reason; possession of reason; due exercise of reason; reasonableness.

To use, and rely on, reason in forming a theory, belief, etc., especially in matters of religion: to accord with …

Lat By reason

To exercise the rational faculty; to deduce inferences from premises; to perform the process of deduction or of induction; to …

Having the faculty of reason; endued with reason; rational; as, a reasonable being.

Governed by reason; being under the influence of reason; thinking, speaking, or acting rationally, or according to the dictates of …

To place in or under by a mental or rational process; to assign to, as a class, a cause, source, …

Sound perception and reasoning; correct judgment; good mental capacity; understanding; also, that which is sound, true, or reasonable; rational meaning.