English

Definition of react verb from the Oxford Advanced Learner's Dictionary

        

    react

     verb
    verb
    BrE BrE//riˈækt//
     
    ; NAmE NAmE//riˈækt//
     
    Verb Forms present simple I / you / we / they react
    BrE BrE//riˈækt//
     
    ; NAmE NAmE//riˈækt//
     
    he / she / it reacts
    BrE BrE//riˈækts//
     
    ; NAmE NAmE//riˈækts//
     
    past simple reacted
    BrE BrE//riˈæktɪd//
     
    ; NAmE NAmE//riˈæktɪd//
     
    past participle reacted
    BrE BrE//riˈæktɪd//
     
    ; NAmE NAmE//riˈæktɪd//
     
    -ing form reacting
    BrE BrE//riˈæktɪŋ//
     
    ; NAmE NAmE//riˈæktɪŋ//
     
    Molecules and matter, Being ill
     
    jump to other results
  1. 1  [intransitive] react (to something) (by doing something) to change or behave in a particular way as a result of or in response to something Local residents have reacted angrily to the news. I nudged her but she didn't react. You never know how he is going to react. The market reacted by falling a further two points.
  2. 2  [intransitive] (+ adv./prep.) to become ill/sick after eating, breathing, etc. a particular substance People can react badly to certain food additives. See related entries: Being ill
  3. 3 [intransitive] react (with something) | react (together) (chemistry) (of substances) to experience a chemical change when coming into contact with another substance Iron reacts with water and air to produce rust. When an acid and an alkali react together the result is a salt and water. Wordfinderacid, catalyst, chemistry, compound, formula, molecule, pH, react, solution, valency See related entries: Molecules and matter
  4. Word Origin mid 17th cent.: from re- (expressing intensive force or reversal) + act, originally suggested by medieval Latin react- ‘done again’, from the verb reagere.Extra examples Her family reacted with horror when she told them. His insensitive remarks hurt and she reacted accordingly. Many young people react against traditional values. Silicon reacts chemically like carbon. The committee reacted positively to the proposals. The government reacted by increasing taxation. The industry has been slow to react to these breakthroughs in technology. The police must be able to react swiftly in an emergency. people who react positively to change I nudged her but she didn’t react. Phrasal Verbsreact against somebody
See the Oxford Advanced American Dictionary entry: react

Other results

All matches
Phrasal verbs