Pronunciation: /riˈækʃən/

Definitions of reaction

noun a response to something

Example Sentences

A1 My cat's reaction to catnip is always entertaining.

A2 She had an allergic reaction to the new medication.

B1 His reaction to the news was one of shock and disbelief.

B2 The government's reaction to the crisis was swift and decisive.

C1 The scientist studied the chemical reaction between the two substances.

C2 Her reaction to the proposal was one of overwhelming joy and gratitude.

adjective reacting or responding to a stimulus

Example Sentences

A1 She had a strong reaction to the spicy food.

A2 His reaction to the news was one of shock and disbelief.

B1 The medication may cause a reaction in some people with allergies.

B2 The company's decision elicited mixed reactions from the employees.

C1 The politician's controversial statement sparked a strong reaction from the public.

C2 Her reaction to the criticism was to remain calm and composed.

Examples of reaction in a Sentence

formal The scientist studied the chemical reaction carefully in the lab.

informal I can't believe her reaction when she found out the news!

slang His reaction was totally lit when he saw the surprise party.

figurative Her reaction to the criticism was like a storm brewing inside her.

Grammatical Forms of reaction

past tense

reacted

plural

reactions

comparative

more reactive

superlative

most reactive

present tense

react

future tense

will react

perfect tense

have reacted

continuous tense

is reacting

singular

reaction

positive degree

reactive

infinitive

to react

gerund

reacting

participle

reacted

Origin and Evolution of reaction

First Known Use: 1601 year
Language of Origin: Latin
Story behind the word: The word 'reaction' originated from the Latin word 'reactio', which is derived from the verb 'reagere' meaning 'to act or do again'.
Evolution of the word: Originally used in a scientific context to describe a response to a stimulus, the word 'reaction' has evolved to also encompass emotional, social, and political responses in modern language.