Definition of Reaction
Reaction
re·ac·tion
Definition/Meaning
(noun)
A response to a situation or stimulus.
e.g. The audience's reaction to the surprise announcement was overwhelming.
(noun)
the action or process of responding to an event or situation, typically by experiencing some feeling or performing some act;
e.g. She had a slow reaction to my words because she was so tired.
(noun)
a response of a person's body to a particular stimulus, especially a negative response to a harmful substance taken in;
e.g. She had a reaction to the medication, so the doctor told her to stop using it.
(noun)
a process in which two or more chemical substances interact with each other and form different substances;
e.g. The reaction between baking soda and vinegar forms bubbles and fizzing.
(noun)
(physics) a force that arises as a response to another, with the two typically being equal and opposite;
e.g. When you compress a spring, the spring exerts a reaction by which it returns to its original shape.
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