1. (noun) (chemistry) a substance that initiates or accelerates a chemical reaction without itself being affected

• accelerator

1. (noun) (chemistry) a substance that initiates or accelerates a chemical reaction without itself being affected

• activator

2. (noun) something that causes an important event to happen

• causal agency
• causal agent
• cause

1. (noun) (chemistry) a substance that initiates or accelerates a chemical reaction without itself being affected

• biocatalyst
• enzyme
• platinum black

1. (noun) (chemistry) a substance that initiates or accelerates a chemical reaction without itself being affected

• chemical science
• chemistry

1. (noun) (chemistry) a substance that initiates or accelerates a chemical reaction without itself being affected

• anticatalyst

1. (noun) (chemistry) a substance that initiates or accelerates a chemical reaction without itself being affected

• catalyse
• catalyze