- react
- re|actW3S3 [riˈækt] v▬▬▬▬▬▬▬1¦(behaviour/feelings)¦2¦(chemicals)¦3¦(prices)¦4¦(become ill)¦Phrasal verbsreact against something▬▬▬▬▬▬▬1.) ¦(BEHAVIOUR/FEELINGS)¦to behave in a particular way or show a particular emotion because of something that has happened or been said→↑respond react to▪ How did Wilson react to your idea?▪ He reacted angrily to the suggestion that he had lied.▪ She reacted very badly (=was very upset) when her parents split up.▪ You have to react quickly to circumstances.react by doing sth▪ The government reacted by declaring all strikes illegal.2.) ¦(CHEMICALS)¦[i]technical if a chemical substance reacts, it changes when it is mixed with another chemical substancereact with▪ The calcium reacts with sulphur in the atmosphere.3.) ¦(PRICES)¦if prices or financial markets react to something that happens, they increase or decrease in value because of itreact to▪ Oil prices reacted sharply (=reacted a lot) to news of the crisis in the Middle East.▪ The market reacted favourably to the announcement.4.) ¦(BECOME ILL)¦to become ill when a chemical or drug goes into your body, or when you eat a particular kind of food→↑respond react to▪ Quite a lot of children react badly to antibiotics.react against [react against sth] phr vto show that you dislike someone else's ideas or ways of doing something, by deliberately doing the opposite▪ He reacted strongly against his religious upbringing.
Dictionary of contemporary English. 2013.