Definition of catalysis in English:

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Pronunciation: /kəˈtalɪsɪs/


[mass noun]
The acceleration of a chemical reaction by a catalyst.
Example sentences
  • Amides are hydrolysed to ammonium salts with catalysis by acids or alkalis.
  • One area where ionic liquids promise to make a big impact is in homogeneous catalysis, where the catalyst is typically dissolved in solution along with the reactants.
  • After polymerisation using heat, light, radiation or catalysis, a range of strong thermosetting plastics can be produced.


Mid 19th century: from modern Latin, from Greek katalusis, from kataluein 'dissolve', from kata- 'down' + luein 'loosen'.

Words that rhyme with catalysis

analysis, dialysis, paralysis, psychoanalysis

For editors and proofreaders

Line breaks: ca|taly¦sis

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