reaction

Academic Word List, sublist 3.

About 63.49 uses per million words.

Meaning

1. noun An action or statement in response to a stimulus or other event.

   The announcement of the verdict brought a violent reaction.

2. noun A transformation in which one or more substances is converted into another by combination or decomposition.

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

3. noun Reactionary politics; a period in which reactionary thought or politics is resurgent or dominant.
4. noun Unpurposeful behavior.
5. noun An icon or emoji appended to a posted message by a user to express their feeling about it.

Similar words

response chemical reaction reactive reactivity responding responsiveness answer respond reply feedback

Often followed by

to of is in was and against with time

Word family

react reacted reacting reactionaries reactionary reactions reactivate reactivation reactive reactor