Definition of deviations:
(n) :
A departure from the correct way of acting.
(n) :
The act of deviating; wandering off the correct or true path or road.
(n) :
The state or result of having deviated; a transgression; an act of sin; an error; an offense.
(n) :
(statistics) For interval variables and ratio variables, a measure of difference between the observed value and the mean.
(n) :
(metrology) The signed difference between a value and its reference value.
(n) :
(aviation) A detour to one side of the originally-planned flightpath (for instance, to avoid weather); the act of making such a detour.