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
Ginkgo biloba supplements interact with certain medications, like blood thinners, and may cause side effects, including headache, stomach upset, dizziness, palpitations, constipation, and allergic skin reactions.
—
Sarah Anzlovar, Ms, Rd, Verywell Health, 10 Jan. 2025
David Paul Morris | Bloomberg | Getty Images Meta CEO Mark Zuckerberg told Joe Rogan in a podcast published Friday that his company was pressured by the Biden administration to remove content on side effects of Covid vaccines.
—Jordan Novet, CNBC, 10 Jan. 2025
It is designed to alleviate the side effects of hormonal fluctuations and to prevent weight gain, according to US News.
—Melissa Rudy, Fox News, 10 Jan. 2025
Without the ability to pay for prescription refills on hormones like testosterone and estrogen, trans Americans would face the prospect of having to suddenly stop hormone replacement therapy, which can cause adverse side effects like menopausal symptoms.
—Orion Rummler, Them, 8 Jan. 2025
See all Example Sentences for side effect 
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Sarah Anzlovar, Ms, Rd, Verywell Health, 10 Jan. 2025
David Paul Morris | Bloomberg | Getty Images Meta CEO Mark Zuckerberg told Joe Rogan in a podcast published Friday that his company was pressured by the Biden administration to remove content on side effects of Covid vaccines.
—Jordan Novet, CNBC, 10 Jan. 2025
It is designed to alleviate the side effects of hormonal fluctuations and to prevent weight gain, according to US News.
—Melissa Rudy, Fox News, 10 Jan. 2025
Without the ability to pay for prescription refills on hormones like testosterone and estrogen, trans Americans would face the prospect of having to suddenly stop hormone replacement therapy, which can cause adverse side effects like menopausal symptoms.
—Orion Rummler, Them, 8 Jan. 2025
See all Example Sentences for side effect
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 15 Jan. 2025.
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