Reaction: meaning, definitions and examples

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reaction

[ rɪˈækʃən ]

^{Context #1}

chemical

A process in which substances act mutually on each other and are changed into different substances, or one where a substance changes into different substances.

Synonyms

chemical change, interaction, response

Examples of usage

The reaction between sodium and water produces sodium hydroxide and hydrogen gas.
In a combustion reaction, oxygen reacts with a fuel to produce heat and light.
The reaction of baking soda and vinegar produces carbon dioxide gas.
The reaction of iron with oxygen forms rust.

^{Context #2}

emotional

A response to a situation, event, or stimulus.

Synonyms

attitude, feeling, response

Examples of usage

Her reaction to the news was one of shock and disbelief.
He had a strong reaction to the medication, experiencing side effects.

^{Context #3}

biological

A response of an organism to a stimulus.

Synonyms

defense mechanism, response, response mechanism

Examples of usage

The allergic reaction caused her to break out in hives.
The fight or flight reaction is a natural response to danger.

Translations

Translations of the word "reaction" in other languages:

🇵🇹 reação

🇮🇳 प्रतिक्रिया

🇩🇪 Reaktion

🇮🇩 reaksi

🇺🇦 реакція

🇵🇱 reakcja

🇯🇵 反応 (はんのう)

🇫🇷 réaction

🇪🇸 reacción

🇹🇷 tepki

🇰🇷 반응 (반응)

🇸🇦 رد فعل

🇨🇿 reakce

🇸🇰 reakcia

🇨🇳 反应 (fǎnyìng)

🇸🇮 reakcija

🇮🇸 viðbrögð

🇰🇿 реакция

🇬🇪 რეაქცია

🇦🇿 reaksiya

🇲🇽 reacción

Word origin

The word 'reaction' originated from the Latin word 'reactio', which means 'action in return'. The concept of reaction has been fundamental in various fields such as chemistry, physics, biology, and psychology. The understanding of reactions has led to advancements in scientific research and technology, as well as in our understanding of human behavior and responses to stimuli.