reaction
♦♦ re|ac|tion /ri'ækʃən/ (reactions)
1 [N-VAR] usu with supp
Your reaction to something that has happened or something that you have experienced is what you feel, say, or do because of it.
Reaction to the visit is mixed...
He was surprised that his answer should have caused such a strong reaction.
2 [N-COUNT] N against n
A reaction against something is a way of behaving or doing something that is deliberately different from what has been done before.
All new fashion starts out as a reaction against existing convention...
3 [N-SING] also no det, N against n
If there is a reaction against something, it becomes unpopular.
Premature moves in this respect might well provoke a reaction against the reform...
4 [N-PLURAL] oft poss N
Your reactions are your ability to move quickly in response to something, for example when you are in danger.
The sport requires very fast reactions.
5 [N-UNCOUNT]
Reaction is the belief that the political or social system of your country should not change.
Thus, he aided reaction and thwarted progress.
6 [N-COUNT]
A chemical reaction is a process in which two substances combine together chemically to form another substance.
Ozone is produced by the reaction between oxygen and ultra-violet light...
7 [N-COUNT] oft adj N to n
If you have a reaction to a substance such as a drug, or to something you have touched, you are affected unpleasantly or made ill by it.
Every year, 5000 people have life-threatening reactions to anaesthetics...chain re|ac|tion (chain reactions)
1 [N-COUNT]
A chain reaction is a series of chemical changes, each of which causes the next.
2 [N-COUNT]
A chain reaction is a series of events, each of which causes the next.
The powder immediately ignited and set off a chain reaction of explosions.
1 [N-VAR] usu with supp
Your reaction to something that has happened or something that you have experienced is what you feel, say, or do because of it.
Reaction to the visit is mixed...
He was surprised that his answer should have caused such a strong reaction.
2 [N-COUNT] N against n
A reaction against something is a way of behaving or doing something that is deliberately different from what has been done before.
All new fashion starts out as a reaction against existing convention...
3 [N-SING] also no det, N against n
If there is a reaction against something, it becomes unpopular.
Premature moves in this respect might well provoke a reaction against the reform...
4 [N-PLURAL] oft poss N
Your reactions are your ability to move quickly in response to something, for example when you are in danger.
The sport requires very fast reactions.
5 [N-UNCOUNT]
Reaction is the belief that the political or social system of your country should not change.
Thus, he aided reaction and thwarted progress.
6 [N-COUNT]
A chemical reaction is a process in which two substances combine together chemically to form another substance.
Ozone is produced by the reaction between oxygen and ultra-violet light...
7 [N-COUNT] oft adj N to n
If you have a reaction to a substance such as a drug, or to something you have touched, you are affected unpleasantly or made ill by it.
Every year, 5000 people have life-threatening reactions to anaesthetics...chain re|ac|tion (chain reactions)
1 [N-COUNT]
A chain reaction is a series of chemical changes, each of which causes the next.
2 [N-COUNT]
A chain reaction is a series of events, each of which causes the next.
The powder immediately ignited and set off a chain reaction of explosions.