The meaning of REACTION is the act or process or an instance of reacting. How to use reaction in a sentence.

REACTION definition: a reverse movement or tendency; an action in a reverse direction or manner. See examples of reaction used in a sentence.

A chemical reaction is the change that happens when two or more substances are mixed with each other.

Usage: Reaction is used to refer both to an instant response (her reaction was one of amazement) and to a considered response in the form of a statement (the Minister gave his …

reaction meaning, definition, what is reaction: something that you feel or do because of...: Learn more.

Reaction Look up reaction in Wiktionary, the free dictionary. Reaction may refer to a process or to a response to an action, event, or exposure.

A reaction is an action taken in response to something. If you're telling your parents that you want to move out, you'll see by their reaction that they're sad about it.