Meaning & use

reaction

noun·Everyday

A response to something that has happened, been said, or been experienced.

See it in a sentence

Her immediate reaction to the news was a mixture of shock and relief.

The chemical reaction produced heat and a strong smell inside the lab.

A note on using this word

In chemistry, reaction refers to a process between substances, while in everyday speech it usually means an emotional or physical response.

Words with a similar meaning

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