reaction

noun
/ɹiˈækʃən/

An action or statement in response to a stimulus or other event.

Example

“The announcement of the verdict brought a violent reaction.”

Other meanings

A transformation in which one or more substances is converted into another by combination or decomposition.
“In this reaction, the acid and base will neutralize each other, producing a salt.”
Reactionary politics; a period in which reactionary thought or politics is resurgent or dominant.

Synonyms

chemical reaction

Example sentences

“I had a similar reaction.”
Tatoeba · ddnktr · CC0
“That's a common reaction.”
Tatoeba · shekitten · CC0

Word history

From Old French "reaction".

Where this comes from

This definition is adapted from “reaction” on Wiktionary, by its contributors; example sentences are from Tatoeba, credited to their authors above; related-word lists use Open English WordNet (CC BY 4.0, based on Princeton WordNet), published under CC BY-SA 4.0. This page is published under the same licence.