English Lexicon

Reaktion

/ʁeakˈtsi̯oːn/
nounCEFR B1 (Intermediate)Top #1500 frequency
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Comprehensive Definitions & Senses

2 senses
As noun
  1. 1

    The act of responding to a stimulus or situation.

    "Her quick reaction to the emergency helped save lives."
  2. 2

    A chemical process in which one or more substances are changed into others.

    "The reaction between the two chemicals produced a gas."

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Antonyms & Contrasting Words (1)

Linguistic Origin & Historical Etymology

The word 'Reaktion' originates from the Latin 'reactio', which means 'a doing again'. It entered the German language in the 19th century, reflecting the scientific and philosophical discourse of the time, particularly in the context of chemistry and physics.

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