catalyst
catalyst /ˈkæt.əl.ɪst/ aep /ˈkæt̬-/ noun [C]
1 F0 SPECIALIZED something that makes a chemical reaction happen more quickly without itself being changed Thesaurus+: ↑Chemistry - general words2 F0 an event or person that causes great change: » The high suicide rate acted as a catalyst for change in the prison system.Thesaurus+: ↑Causing things to happen |