Noun
1. a twist or aberration; especially a perverse or abnormal way of judging or acting
2. the amount by which a propagating wave is bent
3. the movement of the pointer or pen of a measuring instrument from its zero position
4. the property of being bent or deflected
5. a turning aside (of your course or attention or concern);
"a diversion from the main highway""a digression into irrelevant details""a deflection from his goal"