Definition of "Rationalize" :

verb: weed out unwanted or unnecessary things

verb: remove irrational quantities from

"This function can be rationalized."

verb: think rationally; employ logic or reason

"When one wonders why one is doing certain things, one should rationalize."

verb: defend, explain, clear away, or make excuses for by reasoning

"Rationalize the child's seemingly crazy behavior."

verb: structure and run according to rational or scientific principles in order to achieve desired results

"We rationalized the factory's production and raised profits."