Halo effect

What is Halo effect?

Halo effect definition and meaning on Dictionary terms:
noun

a predisposition to admire all of a person’s actions, work, etc., because of an estimable quality or action in the past.
Psychology. a potential inaccuracy in observation, as of a person, due to overgeneralization from a limited amount of evidence or the influence of preconceived beliefs or a priori hypotheses: The assumption that he is an authority on the subject is a halo effect of his Ivy League manner.
any desirable side effect.