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
Sonu matched or outperformed conventional treatments, with no reported side effects.
—
Tanya Benedicto Klich, Forbes.com, 27 June 2025
Any burden on adults is, according to the ruling, merely a side effect of this legitimate regulation.
—Meg Leta Jones, The Conversation, 27 June 2025
Thirteen-year-old Mei is a boy-band-crazy girl whose puberty has a fascinating side effect: her mood swings turn her into a giant red panda.
—Barry Levitt, Time, 26 June 2025
The drug had similar side effects to Wegovy despite delivering more weight loss.
—Annika Kim Constantino,ashley Capoot, CNBC, 25 June 2025
See All Example Sentences for side effect
Examples are automatically compiled from online sources to
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Tanya Benedicto Klich, Forbes.com, 27 June 2025
Any burden on adults is, according to the ruling, merely a side effect of this legitimate regulation.
—Meg Leta Jones, The Conversation, 27 June 2025
Thirteen-year-old Mei is a boy-band-crazy girl whose puberty has a fascinating side effect: her mood swings turn her into a giant red panda.
—Barry Levitt, Time, 26 June 2025
The drug had similar side effects to Wegovy despite delivering more weight loss.
—Annika Kim Constantino,ashley Capoot, CNBC, 25 June 2025
See All Example Sentences for side effect
Cite this Entry
“Side effect.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/side%20effect. Accessed 6 Jul. 2025.
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