any effect of a drug, chemical, or other medicine that is in addition to its intended effect, especially an effect that is harmful or unpleasant.
any accompanying or consequential and usually detrimental effect:
the side effects of air pollution.
any unwanted nontherapeutic effect caused by a drug Compare aftereffect (sense 2)
any secondary effect, esp an undesirable one
side effect n.
A peripheral or secondary effect, especially an undesirable secondary effect of a drug or therapeutic regimen.
A language construct that modifies the state of the system. The most common side-effects are assignment, input and output. A language without side-effects is purely-functional – execution consists of the evaluation of an expression and all subexpressions are referentially transparent.
noun 1. a shot or pass played with the side of the foot verb 2. (transitive) to strike (a ball) with the side of the foot
noun 1. a glance directed to the side; an oblique or sideways look: a side-glance of displeasure at her interrupter.
noun, Printing. 1. a heading or subhead run in the margin of a book or magazine.
noun 1. a hillside.