v.
1.structure and run according to rational or scientific principles in order to achieve desired results
2.defend, explain, clear away, or make excuses for by reasoning
3.think rationally
4.remove irrational quantities from
5.weed out unwanted or unnecessary things
Idiom of the Day
lay off (something) or lay (something) off
to stop using or taking something bad (alcohol or drugs or chocolate or cigarettes)
I was told by my doctor to lay off smoking or I will be sick in the future.