Meaning of REACT in English


rē+ verb

( -ed/-ing/-s )

Etymology: New Latin reactus, past participle of reagere, from Latin re- + agere to drive, act — more at agent

intransitive verb

1. : to exert a reciprocal or counteracting force or influence — often used with on or upon

exhausting work must react on human character — Samuel Van Valkenburg & Ellsworth Huntington

2. : to respond in a particular way to a particular treatment, situation, or other stimulus

reacted with instinctive indignation — J.P.Frank

— often used with to

was not sure how the patient would react to the drug

3. : to act in opposition to some force or influence — usually used with against

reacted against the threat of dictatorship — New School for Social Research Bulletin

reacting against mass ideologies — Henry Hewes

4. : to move in or tend toward a reverse direction : return to or toward a prior condition

public opinion wavered briefly but soon reacted in his favor

stock prices reacted strongly after a brief drop

5. : to undergo chemical reaction

transitive verb

: to cause to react ; specifically : to bring about a chemical reaction in

produces ethyl chloride by reacting chlorine with waste — Lamp

Synonyms: see act

Webster's New International English Dictionary.      Новый международный словарь английского языка Webster.