reaction

Definitions

1. An action or statement in response to a stimulus or other event.
2. Rare spelling of reaction.
   alt-of, rare
3. A process in which substances react to form new substances. Bonds are broken and re-formed in chemical reactions.
4. A transformation in which one or more substances is converted into another by combination or decomposition.
5. recoil
6. (plural reˈactionaries) (a person) opposed to change and progress or favouring a return to things as they were. reaksionêr رَجْعي реакционер reacionário reakcionář(ský) reaktionär reaktionær; reaktionær person αντιδραστικόςreaccionario tagurlik ارتجاعی؛ واپس گرایانه؛ مرتجع taantumuksellinen réactionnaireריאקציונר प्रतिक्रियावादी reakcionaran, nazadan reakciós reaksioner afturhaldssamur maður reazionario 反動の 반작용의 reakcingas; reakcionierius reakcionārs pertukaran reactionairreaksjonær, bakstrev...
   plural
7. Reactionary politics; a period in which reactionary thought or politics is resurgent or dominant.
8. reactionary political faction or movement
9. (also nuclear reactor) an apparatus in which nuclear energy is produced which can be used as a source of power, eg when converted into electricity. reaktor مُفاعِل реактор reator reaktor der Reaktor reaktor; -reaktor αντιδραστήραςreactor (tuuma)reaktor راکتور reaktori réacteur כּוּר גַרעִינִי संयंत्र reaktor (atom)reaktor reaktor kjarnakljúfur/-ofn reattore 原子炉 원자로 reaktorius []reaktors reaktor reactorreaktorreaktor راکتور reactor reactor (nuclear) реактор reaktor reaktor reaktor reaktor เครื...
   also
10. Unpurposeful behavior.
    Austrian
11. reacción, respuesta;allergic ___ → ___ alérgica;
12. An icon or emoji appended to a posted message by a user to express their feeling about it.
    Internet
13. A response to a stimulus.
14. A reverse or opposing action.
15. A tendency to revert to a former state.
16. Chemistry A change or transformation in which a substance decomposes, combines with other substances, or interchanges constituents with other substances.
    Chemistry
17. Physics A nuclear reaction.
    Physics
18. Physics An equal and opposite force exerted by a body against another body that is exerting a force on it.
    Physics

Equivalents

Examples

“The announcement of the verdict brought a violent reaction.”

“You were in the courtroom. What is your reaction?”

“When I last⟳ tried to eat⟳ strawberries I had a terrible allergic reaction.”

“In this reaction, the acid and base⟳ will neutralize each other, producing a salt.”

“And as Europe advanced year by year more deeply into the low featureless plains of reaction, censorship and mediocrity and the pestilential swamps of poverty, unhappiness and oppression, the image of the liberating revolution became ever more luminous.”

CEFR level