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   re·ac·tion

   /rēˈakSH(ə)n/

   noun

   • 1. an action performed or a feeling experienced in response to a situation or event: "Carrie's immediate reaction was one of relief" Similar responseanswerreplyrejoinderretortripostefeedbackinformal:comebackclapback
   • ▪ a person's ability to respond physically and mentally to external stimuli: "a skilled driver with quick reactions"
   • ▪ an adverse physiological response to a substance that has been breathed in, ingested, or touched: "such allergic reactions as hay fever and asthma"
   • ▪ a chemical process in which two or more substances act mutually on each other and are changed into different substances, or one substance changes into two or more other substances.
   • ▪ an analogous transformation of atomic nuclei or other particles.
   • ▪ a mode of thinking or behaving that is deliberately different from previous modes of thought and behavior: "the work of these painters was a reaction against fauvism" Similar backlashcounteractionrecoil
   • ▪ opposition to political or social progress or reform: "the institution is under threat from the forces of reaction" Similar conservatismultra-conservatismthe rightthe right wingthe extreme rightcounter-revolutionrevanchism
   • ▪ repulsion or resistance exerted in opposition to the impact or pressure of another body; a force equal and opposite to the force giving rise to it.

   Word Origin late 16th century: from re- + action, originally suggested by medieval Latin reactio(n-), from react- ‘done again’ (see react).

   Derivatives

   • 1. reactionist noun

   Scrabble Points: 10

   • R

     1

   • E

     1

   • A

     1

   • C

     3

   • T

     1

   • I

     1

   • O

     1

   • N

     1

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