Noun: reaction ree'ak-shun
- (chemistry) a process in which one or more substances are changed into others
"there was a chemical reaction of the lime with the ground water";
- chemical reaction
- An idea evoked by some experience
"his reaction to the news was to start planning what to do"
- A bodily process occurring due to the effect of some antecedent stimulus or agent
"a bad reaction to the medicine";
- (mechanics) the equal and opposite force that is produced when any force is applied to a body
"every action has an equal and opposite reaction"
- A response that reveals a person's feelings or attitude
"he was pleased by the audience's reaction to his performance"; "John feared his mother's reaction when she saw the broken lamp"
- Extreme conservatism in political or social matters
"the forces of reaction carried the election"
- Doing something in opposition to another way of doing it that you don't like
"his style of painting was a reaction against cubism"
Derived forms: reactions
Type of: activity, bodily function, bodily process, body process, chemical action, chemical change, chemical process, conservatism, conservativism, force, idea, opposition, resistance, response, thought