HyperDic: catalyst

English > 2 senses of the word catalyst:
NOUNsubstancecatalyst, accelerator(chemistry) a substance that initiates or accelerates a chemical reaction without itself being affected
person catalystsomething that causes an important event to happen
catalyst > pronunciation
Soundskae'tahlahst; kae'tahlihst
Rhymesabolitionist ... zoologist: 193 rhymes with ahst...
abortionist ... Zionist: 245 rhymes with ihst...
English > catalyst: 2 senses > noun 1, substance
Meaning(chemistry) a substance that initiates or accelerates a chemical reaction without itself being affected.
Synonymaccelerator
Categorychemistry, chemical scienceThe science of matter
NarrowerbiocatalystA biochemical catalyst such as an enzyme
enzymeAny of several complex proteins that are produced by cells and act as catalysts in specific biochemical reactions
platinum blackA fine black powder of platinum
Broaderactivator(biology) any agency bringing about activation
Oppositeanticatalyst(chemistry) a substance that retards a chemical reaction or diminishes the activity of a catalyst
Spanishacelerador, catalizador
Catalancatalitzador
Verbscatalyzechange by catalysis or cause to catalyze
English > catalyst: 2 senses > noun 2, person
MeaningSomething that causes an important event to happen.
Example"the invasion acted as a catalyst to unite the country"
Broadercausal agent, cause, causal agencyAny entity that produces an effect or is responsible for events or results
Spanishcatalizador
Catalancatalitzador

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