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reaction

re·ac·tion

reaction

 
 
pronunciation:
ri aek shn
features:
Word Explorer, Word Parts
part of speech: noun
definition 1: a movement, action, or response in reverse direction or manner.
synonyms:
counteraction, reversal, withdrawal
similar words:
reverse, rise
definition 2: movement toward extreme political conservatism.
The 1980s was a decade of reaction.
synonyms:
ultraconservatism
definition 3: a response to an influence or stimulus.
I was surprised by his calm reaction to the news of her suicide.We all want to see her reaction when they announce the winner.
synonyms:
response
similar words:
reply, rise
definition 4: in chemistry, change that occurs as substances are combined.
The substance turns blue because of a chemical reaction.
definition 5: in physics, the atomic change that occurs when a nucleus is bombarded with a particle, photon, or other nucleus.
definition 6: in mechanics, the immediate response to the application of a force, resulting in an equal and opposite force.
synonyms:
counteraction
derivations: reactional (adj.), reactionally (adv.)
Word Explorer
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  chemistry, first aid
Word Parts
The word reaction contains the following parts:
-ion Latin noun-forming suffix that means the act, process, or result of
Show wordsHide wordsMore about this word part:
The suffix -ion attaches to bases that are Latin verb stems ending in s or t.