Reaction Meaning

/ɹiˈækʃən/
B1

Definition, CEFR level B1, pronunciation, examples, and quiz.

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nounAn action or statement in response to a stimulus or other event.

nounA transformation in which one or more substances is converted into another by combination or decomposition.

Observe his facial reaction when we mention a price.
What factor contributed to the reaction?
People's reaction to the film has varied greatly.
Synonyms:
Antonyms:
None
CEFR Practice Quiz
The experienced chemist observed the rapid ____ when the two liquids mixed in the beaker.
CEFR Practice Quiz (Alternate)
The government's ____ to the crisis was criticized as too slow and insufficiently decisive.

Inherited from Middle English reaccion, from Old French reaction, from Latin reāctiō, from the verb reagō, from re- (“again”) + agō (“to act”); more at re-, action; equivalent to react + -ion.

"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." — 1962, Eric Hobsbawm, The Age of Revolution. 1789-1848, page 268:

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CEFR Practice Quiz
The experienced chemist observed the rapid ____ when the two liquids mixed in the beaker.
CEFR Practice Quiz (Alternate)
The government's ____ to the crisis was criticized as too slow and insufficiently decisive.

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