catalysis
— Noun
– English
~ acceleration of a chemical reaction induced the presence of material that is chemically unchanged at the end of the reaction; "of the top 50 commodity chemicals, 30 are created directly by catalysis and another 6 are made from raw materials that are catalytically produced"
catalyst
— Noun
– English
~ something that causes an important event to happen; "the invasion acted as a catalyst to unite the country"
catalyst
— Noun
– English
~ (chemistry) a substance that initiates or accelerates a chemical reaction without itself being affected