to cause (a chemical reaction) to proceed more quickly by contacting the reactant(s) with another substance; as, moisture catalyzes the oxidation of iron in air.
( KAT- AH -LAI-Z ) TO CAUSE, OR STIMULATE, THE TRANSFORMATION, OF ONE CHEMICAL, INTO ANOTHER CHEMICAL.
Performing change in the rate of chemical reaction brought about by small amounts of a substance that is unchanged chemically at the end of the reaction.
(KAT-ah- lies) to greatly accelerate a chemical reaction; enzymes, for example, are protein catalysts that speed up biochemical reactions in the body; the enzyme is not consumed in the process
increase the speed of a chemical reaction without being changed in the overall reaction process. See enzyme.
To act as a catalyst. Or, to speed up a chemical reaction.
To accelerate the rate of a chemical reaction by a substance that is not permanently affected in the process.
To bring about a change (especially to increase) in the rate of a chemical reaction that is caused by material that is basically unchanged at the end of the reaction.