English dictionary
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English noun: catalyst | |||
| 1. | catalyst (substance) (chemistry) a substance that initiates or accelerates a chemical reaction without itself being affected | ||
| Synonyms | accelerator | ||
| Broader (hypernym) | activator | ||
| Narrower (hyponym) | biocatalyst, enzyme, platinum black | ||
| Domain category | chemical science, chemistry | ||
| Antonyms | anticatalyst | ||
| 2. | catalyst (person) something that causes an important event to happen | ||
| Samples | The invasion acted as a catalyst to unite the country. | ||
| Broader (hypernym) | causal agency, causal agent, cause | ||
Based on WordNet 3.0 copyright © Princeton University.
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Web design: Orcapia v/Per Bang. English edition: .
2025 onlineordbog.dk