Click anywhere to start. This is a simple tool to measure your reaction time. The average (median) reaction time is 273 milliseconds, according to the data collected so far. In addition to …

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

Reacting to an email in Outlook When you receive an email, and you want to send a reaction: Select the reactions button near the top of the message window and you'll see a gallery of …

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

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.

Nov 30, 2025 · A chemical reaction is a process in which one or more substances, the reactants, are converted to one or more different substances, the products. Substances are either …

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.

Apr 26, 2025 · A reaction is more than just a change; it is a chemical change. Unlike physical changes, which might alter a material’s appearance (like melting ice into water) without …

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