rationalize

  1. verb
    remove irrational quantities from; "This function can be rationalized"
  2. verb
    think rationally; employ logic or reason; "When one wonders why one is doing certain things, one should rationalize"
  3. verb
    defend, explain, clear away, or make excuses for by reasoning; "rationalize the child``s seemingly crazy behavior"; "he rationalized his lack of success"
  4. verb
    weed out unwanted or unnecessary things; "We had to lose weight, so we cut the sugar from our diet"
  5. 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"