cat·a·lyst /ˈkætḷəst/
觸媒劑
cat·a·lyst /ˈkætḷəst/ 名詞
催化劑
catalyst
觸媒
catalyst
n 1: (chemistry) a substance that initiates or accelerates a
chemical reaction without itself being affected [syn: accelerator]
[ant: anticatalyst]
2: something that causes an important event to happen; "the
invasion acted as a catalyst to unite the country"