n. 1 Chem. a substance that, without itself undergoing any permanent chemical change, increases the rate of a reaction. 2 a person or thing that precipitates a change.
[ as CATALYSIS after analyst ]
n. 1 Chem. a substance that, without itself undergoing any permanent chemical change, increases the rate of a reaction. 2 a person or thing that precipitates a change.
[ as CATALYSIS after analyst ]
Concise Oxford English dictionary. Краткий оксфордский словарь английского языка. 2012