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Definitions

reaction

[ree-ak-shuhn] / riˈæk ʃən /




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.

Investors’ strong reaction followed the Centers for Medicare & Medicaid Services’ announcement of a large increase in the expected Medicare Advantage reimbursement rate for 2027.

From MarketWatch • Apr. 7, 2026

“It doesn’t take much of a reaction to wipe out a margin of only three quarters of a point,” Lefèvre writes.

From Barron's • Apr. 7, 2026

Fire Administration, potentially leading to a process known as thermal runaway, in which the battery ignites through a self-sustaining chemical reaction that is impossible to stop until it runs out on its own.

From Los Angeles Times • Apr. 6, 2026

When I told my trainer about Cassandra’s reaction, he was not surprised.

From The Wall Street Journal • Apr. 5, 2026

“Can you imagine Galileo’s reaction when he first saw them? There’s nothing there, for all of human history. He finds a new way to look—and there they are!”

From "The Bletchley Riddle" by Ruta Sepetys and Steve Sheinkin