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Showing results for side effect. Search instead for spiegeleffekte.
Definitions

side effect

NOUN
adverse or unwanted secondary effect
Synonyms
STRONGEST
aftereffect reaction
WEAK
aftermath aftertaste by-product carry-over concomitant corollary leftover offshoot secondary response side issue sidebar spinoff

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Yes, giving priority to wellness earlier in life is good for our health, but it can come with another positive side effect: new friends.

From The Wall Street Journal • Apr. 10, 2026

The most commonly reported side effect was a decrease in neutrophils, which are a type of white blood cell.

From Science Daily • Apr. 3, 2026

Some people may experience bloating, nausea or discomfort as a side effect.

From BBC • Mar. 31, 2026

Partaking in them is not without risk—ozone therapy, for example, has the potential side effect of something called an air embolism, which can lead to a stroke or heart attack.

From Slate • Mar. 30, 2026

Call it a side effect of being struck by lightning.

From "The Miscalculations of Lightning Girl" by Stacy McAnulty