In a sentence
Six example sentences with reaction, each labelled with its topic.
Browning a steak is a reaction between sugars and amino acids, which is why a wet pan gives you gray meat.
Cooking
Drop a strip of magnesium into acid and the reaction throws off hydrogen fast enough to fill a test tube.
Science
Sunlight and car exhaust drive the reaction that builds smog, which is why the worst air arrives on still bright afternoons.
Environment
Developing film is a reaction between the silver salts and the chemicals in the tray, timed to the second.
Photography
A lithium battery stores energy in a reaction that runs one way while charging and the other way while powering the phone.
Technology
The green on old bronze statues comes from a slow reaction between the copper and the damp city air.
Art
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Found in these word lists
Found in 5 published word listsAuthoritative
Each source is a published word list that contains reaction. No exam board publishes an official GRE, GMAT or SAT list; GMAT words come from GRE lists and the Academic Word List.