To fall outside of, or part from, some norm; to stray.
To go off course from; to change course; to change plans.
To cause to diverge.
A person with deviant behaviour; a deviant, degenerate or pervert.
A value equal to the difference between a measured variable factor and a fixed or algorithmic reference value.
To go extinct or become obsolete; to fall out of common practice or use; to become a thing of the past.