catalyst

['kæt(ə)lɪst] s

catalyst A substance whose presence alters the rate at which a chemical reaction proceeds, but whose own composition remains unchanged by the reaction. Catalysts are usually employed to accelerate reactions(positive catalyst), but retarding (negative) catalysts are also used ['kæt(ə)lɪst] s

catalysts s

Inglés tesauro

catalyst ['kæt(ə)lɪst] abbr.

abrev., polím.

cat

catalyst

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packing
carb.	encartuchamento; compactação do atacamento
cienc. ingen.	enchimento; guarnição entrelaçada
cienc. transp.	garganta de gelo
industr.	empacotamento
industr. constr.	embalagem; embrulho
ingen.	junta
med.	compressa