Pronunciation

/rɪˈækʃən/

Definitions

Noun

1. A chemical process resulting from a combination of substances, often involving a change in color, temperature, or the formation of a new substance. For example: “The reaction between vinegar and baking soda produced a fizzy gas.”
2. A response or behavior to a particular situation or stimulus. For example: “Her reaction to the news was unexpected.”
3. An emotional response or feeling. For example: “He had a strong emotional reaction to the movie.”

Verb

1. To undergo a chemical reaction. For example: “Iron reacts with oxygen to form rust.”
2. To respond or act in a particular way. For example: “Her reaction to the challenge was immediate.”

Adjective

1. Characterizing or resulting from a reaction. For example: “The reaction-based paint changes color when exposed to light.”
2. Showing sensitivity or responsiveness. For example: “A reactionary government is quick to enforce rules.”

Phrases

• “Chemical reaction”
• “React to something”
• “Reaction time”
• “Reactivate a system”
• “React with enthusiasm”

Example Sentences

• Noun: “The chemicals in the solution underwent a slow reaction.”
• Verb: “He quickly reacted to the threat by calling the police.”
• Adjective: “Her sensitive skin reacted badly to the new soap.”

Synonyms

• Response
• Action
• Effect
• Outcome
• Result
• Influence
• Impact
• Counteraction
• Counterresponse