react Definition
re·act (rē akt′)
intransitive verb
- to act in return or reciprocally
- to act in opposition
- to act in a reverse way; go back to a former condition, stage, etc.
- to respond to a stimulus; be affected by some influence, event, etc.
- Chem. to act with another substance in producing a chemical change
Etymology: < LL reactus, pp. of reagere < L re-, again + agere, to act
transitive verb
to cause to react; specif., to produce a chemical change in
- reacquaint
- reacquaintance
- reacquire
- reacquisition
react Synonyms
react
v.
react Usage Examples
Adjective complement
quick: Lee Trundle collected Sam Ricketts ' deflected right-wing cross, and although his shot was partially blocked, Connor reacted quickest to slide home.
Modifying Another Word
- angrily: Officials of the local government union Unison reacted angrily.
- differently: We all react differently to what we have just seen.
- negatively: Sufferers of chronic fatigue syndrome appear to potentially react negatively to abnormal exercise.
- violently: Sulfur trioxide Sulfur trioxide reacts violently with water to produce a fog of concentrated sulphuric acid droplets.
- positively: On the other hand, most people there react very positively to your efforts at speaking Dutch, which is great.
- badly: I reacted badly to them all of there was no improvement.
Used with why or when
when: How did Matthew and Samuel react when you told them they'd won?
Infinitive complement
stress: Some react to stress by expressing their fears openly.
Present participle complement
accord: All staff will be trained to be aware of disabilities and react according to a pre-determined plan.
Preposition: in
- manner: If the child reacts in an adverse manner to any stimulation then STOP!
- anger: Parents reacted in anger at the decision and plan to resume a series of protests.
- way: Whatever the cause, our body reacts in the same way - the ' fight or flight ' response to a stressful event.
- situation: We wonder how we would react in such situations.
Preposition: with
- dismay: At the 1 February meeting those present were shown the currently proposed wording of this section by Dr. Pickles, and reacted with dismay.
- chlorine: Manganese is a naturally occurring metal, but when dissolved in water it can react with chlorine added during treatment and turn black.
- oxygen: Elements like phosphorus and silicon react with the oxygen to form acidic oxides.
- anger: These are such blatantly unjust situations that we must react with anger.
- ammonia: Mercury can react with ammonia to produce an explosive solid.
- carbonate: Vinegar in fact contains acetic acid and this reacts with the calcium carbonate making up the shell of the egg.
Browse dictionary entries near react
- reactance ›
- reactant ›
- reaction ›
- reaction engine ›
- reaction formation ›
- reaction time ›
- reactionary ›
- reactivate ›
- reactive ›
- reactor ›

