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.

Knowing your reaction time is an important part of your life and can be used to measure your alertness, quick thinking, and overall physical performance. It can be used in a variety of ways, …

Your reaction to something that has happened or something that you have experienced is what you feel, say, or do because of it.

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 …

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.

3 days ago · reaction (plural reactions) An action or statement in response to a stimulus or other event.

Definition of reaction noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

REACTION meaning: 1 : the way someone acts or feels in response to something that happens, is said, etc.; 2 : an action or attitude that shows disagreement with or disapproval of someone …