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Meaning of CATALYST

Pronunciation:  'katlist

WordNet Dictionary
  1. [n]  something that causes an important event to happen; "the invasion acted as a catalyst to unite the country"
  2. [n]  (chemistry) a substance that initiates or accelerates a chemical reaction without itself being affected

CATALYST is a 8 letter word that starts with C.


 Synonyms: accelerator
 Antonyms: anticatalyst
 See Also: activator, biocatalyst, causal agency, causal agent, cause, enzyme, platinum black



Biology Dictionary
 Definition: A substance which speeds up a chemical or biochemical reaction which, without the catalyst, would have occurred anyway but at a much slower rate. The catalyst is never used up in the reaction, so that there is always the same amount at the start and the end of the reaction. Enzymes are biological catalysts.
 Definition: A substance that promotes a chemical reaction by lowering the activation energy of a chemical reaction, but which itself remains unaltered at the end of the reaction. (See Catalytic antibody, Catalytic RNA)
Thesaurus Terms
 Related Terms: agent, agent provocateur, agitator, agitprop, alterant, alterative, alterer, author, begetter, beginner, catalysis, catalytic agent, causer, creator, decay, demagogue, dialysis, dissociation, effector, engenderer, exciter, father, ferment, firebrand, fission, fomenter, generator, goad, hydrolysis, hydrolyst, impetus, impulse, incendiary, incentive, incitation, incitement, inciter, inflamer, innovationist, innovator, inspirer, instigator, introducer, leaven, maker, mischief-maker, modificator, modifier, mother, motivation, mover, originator, parent, photolysis, precursor, prime mover, primum mobile, producer, provocateur, provoker, rabble-rouser, ringleader, rouser, seditionary, seditionist, sire, splitting, spur, stimulant, thermolysis, transformer, transmogrifier, troublemaker, urger, yeast