side effect
noun1
An unintended consequence, or secondary result, of any action, in addition to the main or intended consequence of that action.
- The processing of certain raw materials - pulp and paper, oil, and alumina, for example - can have substantial environmental side effects.1987, Brundtland Report:
- A side effect of this architecture (which was designed only for efficient fabrication) is that it also performs automated repair.1980, Advanced Automation for Space Missions:
2 more examples
- So you go along for a long time / And nothing seems to worry your mind / But what it adds up to / It's the side effect / That finally gets to you / It's the side effect / That finally gets to you1983, Ashford & Simpson, “Side Effect”, in High-Rise (album):
- Useful for mild depression but may trigger coronary problems. A positive side effect is that it may actually help with degenerative joint disease symptoms.2007, Sylvia Escott-Stump, Nutrition and Diagnosis-Related Care:
2
Medicine, Sciences An unintended consequence of a drug or therapy; usually an adverse effect, and not a beneficial one.
- “While all pharmaceutical treatments have side effects, racism is not a known side effect of any Sanofi medication.”2018 May 30, Christine Hauser, quoting Sanofi, “Roseanne Barr’s Ambien Defense Is Disputed: ‘Racism Is Not a Known Side Effect’”, in The New York Times, →ISSN:
3
Computing, Engineering, Mathematics, Natural sciences, Physical sciences, Programming, Sciences A change a in state outside of the local environment of the function being called.
- The Eiffel programming language is somewhat purist in insisting that functions have no side effects.
- Derived terms
- side-effect, side-effect-free, side-effecting