katalizator

1. (in a car) catalytic converter
   Moram da menjam katalizator na kolima. — I need to replace the catalytic converter on my car.
2. (in chemistry) catalyst
   Platina se često koristi kao katalizator. — Platinum is often used as a catalyst.
3. catalyst; trigger
   Kriza je bila katalizator velikih promena. — The crisis was a catalyst for major change.