reaction

pronunciation

How to pronounce reaction in British English: UK [riˈækʃn]word uk audio image

How to pronounce reaction in American English: US [riˈækʃn] word us audio image

  • Noun:
    a response that reveals a person's feelings or attitude
    a bodily process occurring due to the effect of some foregoing stimulus or agent
    (chemistry) a process in which one or more substances are changed into others
    an idea evoked by some experience
    doing something in opposition to another way of doing it that you don't like
    extreme conservatism in political or social matters
    (mechanics) the equal and opposite force that is produced when any force is applied to a body

Word Origin

reaction (n.)
"action in resistance or response to another action or power," 1610s, from re- "again, anew" + action (q.v.). Modeled on French réaction, older Italian reattione, from Medieval Latin reactionem (nominative reactio), noun of action formed in Late Latin from past participle stem of Latin reagere "react," from re- "back" + agere "to do, act" (see act (v.)). Originally scientific; physiological sense is attested from 1805; psychological sense first recorded 1887; general sense of "action or feeling in response" (to a statement, event, etc.) is recorded from 1914. Reaction time, "time elapsing between the action of an external stimulus and the giving of a signal in reply," attested by 1874.

Antonym

n.

action

Example

1. What 's you reaction to his criticism ?
2. The law of action and reaction is universal .
3. This reaction is not universal .
4. Business reaction has been mixed .
5. Was this the right reaction ?

more: >How to Use "reaction" with Example Sentences