reaction
reaction Lexical Profile
reaction Game Scores & Validity
• noun
Something done, felt, or thought in response to a situation, event, or statement.
"Her initial reaction to the unexpected promotion was one of complete surprise."
A chemical or nuclear process in which substances act mutually on each other and are changed into different substances, or one substance changes into other substances.
"Combining vinegar and baking soda triggers a rapid chemical reaction that releases carbon dioxide gas."
An adverse physiological response by the body to a drug, food, allergen, or medical treatment.
"The patient developed a mild allergic reaction shortly after taking the new antibiotic."
An equal and opposite force exerted by a body against a force acting upon it.
"According to Newton's third law of motion, every action has an equal and opposite reaction."
A political or social tendency that opposes progress or reform and favors a return to a previous state of affairs.
"The sweeping reforms of the decade were followed by a period of conservative political reaction."
• Rhymes for reaction
• Nearby Words
Word Origin & Etymology
Borrowed in the early 17th century from Middle French réaction or Medieval Latin reactio, formed from the prefix re- ('back, again') and actio ('action'), from the Latin verb agere ('to do, drive').
Usage Trend
Historical frequency of usage in published text.