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Definitions

reactive

[ree-ak-tiv] / riˈæk tɪv /




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.

“I think a lot of it is coming out and being the aggressors first, trying not to be reactive to situations, and we can do that starting with our defense,” Leger-Walker said.

From Los Angeles Times • Mar. 31, 2026

This pattern also shows up in bonds, where investors have been even more reactive and pessimistic than their equity counterparts,” said Mark Hackett, the chief market strategist for Nationwide.

From MarketWatch • Mar. 25, 2026

"The reactive power assets in the system were not able to address the sudden voltage rise," the report said.

From BBC • Mar. 20, 2026

They increase levels of "reactive oxygen species," unstable molecules that can damage cells, while also weakening the body's antioxidant defenses that normally keep these molecules under control.

From Science Daily • Mar. 13, 2026

The chemosterilants of this group are alkylating agents, which are extremely reactive chemicals, capable of intense cell destruction, damage to chromosomes, and production of mutations.

From "Silent Spring" by Rachel Carson