catalyst

word

1. Noun

A substance that increases the rate of a chemical reaction without being consumed

2. Noun

A substance that speeds up a chemical reaction without being used up.

A substance that increases the rate of a reaction without being permanently consumed.

“The catalyst lowered the activation energy.”

3. Noun

(chemistry) a substance that initiates or accelerates a chemical reaction without itself being affected
Vocabulary classified under Biology
More about this word
Synonyms and related words
Explore this word