noun
(chemistry) a process in which one or more substances are changed into others
Synonyms
chemical reaction
Examples
- there was a chemical reaction of the lime with the ground water
noun
an idea evoked by some experience
Examples
- his reaction to the news was to start planning what to do
noun
a bodily process occurring due to the effect of some antecedent stimulus or agent
Synonyms
Examples
- a bad reaction to the medicine
- his responses have slowed with age
noun
(mechanics) the equal and opposite force that is produced when any force is applied to a body
Examples
- every action has an equal and opposite reaction
noun
a response that reveals a person's feelings or attitude
Examples
- he was pleased by the audience's reaction to his performance
- John feared his mother's reaction when she saw the broken lamp
noun
extreme conservatism in political or social matters
Examples
- the forces of reaction carried the election
noun
doing something in opposition to another way of doing it that you don't like
Examples
- his style of painting was a reaction against cubism