Definition of addition reaction in English:

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addition reaction

noun

Chemistry
A reaction in which one molecule combines with another to form a larger molecule with no other products: we would expect the CO linkage to undergo addition reactions
More example sentences
  • Polymerization is an addition reaction.
  • Typical reactions of ketones are addition reactions although as a group they are less reactive than the aldehydes.
  • Like other hydrocarbons with double bonds, addition reactions can occur to change the double bonds to single bonds.

For editors and proofreaders

Line breaks: add|ition re|ac¦tion

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