side effect
noun
: a secondary and usually adverse effect (as of a drug)
toxic side effects
called also side reaction
Examples of side effect in a Sentence
Nausea and diarrhea are the side effects of the drug.
the harmful side effects of using chemicals to kill insects
The merger created positive side effects for both companies.
Recent Examples on the Web
Also, given the medicine isn’t designed to help with fertility and pregnancy, there could be harmful side effects.
—
Dominique Fluker, Essence, 25 Oct. 2024
Based on research to date, creatine monohydrate is safe and well-tolerated, with minimal side effects in healthy people.
—Jennifer Lefton, Ms, Rd/n, Cnsc, Fand, Verywell Health, 24 Oct. 2024
What are the side effects of the antidepressant drug Duloxetine?
—Chris Sims, The Courier-Journal, 24 Oct. 2024
Like with any immunization, though, there can be side effects.
—Beth Ann Mayer, Parents, 24 Oct. 2024
See all Example Sentences for side effect 
Dominique Fluker, Essence, 25 Oct. 2024
Based on research to date, creatine monohydrate is safe and well-tolerated, with minimal side effects in healthy people.
—Jennifer Lefton, Ms, Rd/n, Cnsc, Fand, Verywell Health, 24 Oct. 2024
What are the side effects of the antidepressant drug Duloxetine?
—Chris Sims, The Courier-Journal, 24 Oct. 2024
Like with any immunization, though, there can be side effects.
—Beth Ann Mayer, Parents, 24 Oct. 2024
See all Example Sentences for side effect
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'side effect.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
Dictionary Entries Near side effect
Cite this Entry
“Side effect.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/side%20effect. Accessed 5 Nov. 2024.
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