Definitions for side effect

This page provides all possible meanings and translations of the word side effect

Princeton's WordNet

  1. side effect(noun)

    a secondary and usually adverse effect of a drug or therapy

    "severe headaches are one of the side effects of the drug"

  2. side effect, fallout(noun)

    any adverse and unwanted secondary effect

    "a strategy to contain the fallout from the accounting scandal"


  1. side effect(Noun)

    An unintended consequence of any action in addition to the intended consequence of that action.

  2. side effect(Noun)

    An adverse effect, an unintended consequence of a drug or therapy; usually not a beneficial effect.

  3. side effect(Noun)

    A change in state caused by a function call (typically "side-effect").


  1. Side effect

    In computer science, a function or expression is said to have a side effect if, in addition to returning a value, it also modifies some state or has an observable interaction with calling functions of the outside world. For example, a function might modify a global or static variable, modify one of its arguments, raise an exception, write data to a display or file, read data, or call other side-effecting functions. In the presence of side effects, a program's behavior depends on history; that is, the order of evaluation matters. Understanding and debugging a function with side effects requires knowledge about the context and its possible histories. Side effects are the most common way that a program interacts with the outside world. But the degree to which side effects are used depends on the programming paradigm. Imperative programming is known for its frequent utilization of side effects. In functional programming, side effects are rarely used. Functional languages such as Standard ML, Scheme and Scala do not restrict side effects, but it is customary for programmers to avoid them. The functional language Haskell restricts side effects with a static type system; it uses the concept of monads to do stateful and IO computations.

Images & Illustrations of side effect

Translations for side effect

From our Multilingual Translation Dictionary

Get even more translations for side effect »


Find a translation for the side effect definition in other languages:

Select another language:

Discuss these side effect definitions with the community:

Word of the Day

Would you like us to send you a FREE new word definition delivered to your inbox daily?

Please enter your email address:     


Use the citation below to add this definition to your bibliography:


"side effect." STANDS4 LLC, 2015. Web. 24 Nov. 2015. < effect>.

Are we missing a good definition for side effect? Don't keep it to yourself...

Nearby & related entries:

Alternative searches for side effect:

Thanks for your vote! We truly appreciate your support.