Rationalize

Webster's Dictionary of the English Language

·vt To form a rational conception of.

II. Rationalize ·vt To interpret in the manner of a rationalist.

III. Rationalize ·vt To make rational; also, to convert to rationalism.

IV. Rationalize ·vt To render rational; to free from radical signs or quantities.

V. Rationalize ·vi To use, and rely on, reason in forming a theory, belief, ·etc., especially in matters of religion: to accord with the principles of rationalism.