Reaction Riˈækʃn Extra Examples Change Chemical Mixed I

• to provoke/cause/get a reaction
• a positive/negative/adverse reaction
• what was his reaction to the news?
• often our actions are based upon an emotional reaction to what someone has done or said to us.

reaction

1. what you do, say or think as a result of something that has happened
• to provoke/cause/get a reaction
• a positive/negative/adverse reaction
• What was his reaction to the news?
• Often our actions are based upon an emotional reaction to what someone has done or said to us.
• A spokesman said the changes were not in reaction to the company's recent losses.
• The initial reaction of the White House was favourable.
• It's just another knee-jerk reaction from sections of the media.
• My immediate reaction was one of shock.
• There has been a mixed reaction to her appointment as director.
• The decision provoked an angry reaction from local residents.
• I tried shaking him but there was no reaction.

Extra Examples

• He eyed her cautiously, trying to gauge her reaction.
• Her outburst was a delayed reaction to an unpleasant letter she'd received that morning.
• His reaction is completely understandable.
• Judging by her reaction, she liked the present.
• She was surprised at the reaction brought by the mention of his name.
• The critical reaction to his first novel has been positive.
• The incident calls for a measured response, avoiding knee-jerk reactions.
• The play met with a mixed reaction from the critics.
• The speech got a mixed reaction.
• There's been a drop in ticket sales in reaction to the review.
• the public reaction to the news
2. a change in people’s attitudes or behaviour caused by disapproval of the attitudes, etc. of the past
• The return to traditional family values is a reaction against the permissiveness of recent decades.
• Her rebellious attitude is just a reaction against her strict upbringing.
3. a response by the body, usually a bad one, to a drug, chemical substance, etc.
• If you have a bad reaction, discontinue use immediately.
• to have an allergic reaction to a drug
• Adverse reactions to certain foods can take a few days to manifest.

Extra Examples

• a delayed reaction to the drugs
• She had a very bad allergic reaction to the peanuts.
• I believe she is experiencing a post-traumatic stress reaction.
4. the ability to move quickly in response to something, especially if in danger
• a skilled driver with quick reactions

Extra Examples

• Alcohol has the effect of slowing down your reactions.
• Keenan showed lightning reactions.
• She has very quick reactions.
5. a chemical change produced by two or more substances acting on each other
• SEE ALSO addition reaction
  https://www.oxfordlearnersdictionaries.com/definition/english/addition-reaction
• a chemical reaction
• a nuclear reaction
• To perform the test, add five drops of the solution to the compound and then observe the reaction.
• the reaction of oxygen with other atoms
• the reaction of chlorine atoms and ozone

Extra Examples

• the energy given out during the reaction
• the fuel's chemical reaction with the surrounding water
• I am studying the reactions between certain gases.
6. a force shown by something in response to another force, which is of equal strength and acts in the opposite direction
• Action and reaction are equal and opposite.
7. opposition to social or political progress or change
• The forces of reaction made change difficult.

Word Origin

• mid 17th cent.: from react + -ion, originally suggested by medieval Latin reactio(n-), from react- ‘done again’, from the verb reagere.