Word | Noun | Adjective | Verb | Adverb |
---|---|---|---|---|
accelerator | Yes | No | No | No |
catalyst | Yes | No | No | No |
accelerator (noun) | catalyst (noun) |
---|---|
a valve that regulates the supply of fuel to the engine | something that causes an important event to happen |
a scientific instrument that increases the kinetic energy of charged particles | (chemistry) a substance that initiates or accelerates a chemical reaction without itself being affected |
a pedal that controls the throttle valve | |
(chemistry) a substance that initiates or accelerates a chemical reaction without itself being affected |