accelerant
Word family nounaccelerantaccelerationacceleratoraccelerometeradjectiveaccelerativeacceleratoryverbaccelerate
ac·cel·er·ant /əkˈselərənt/ noun [countableC] formal a substance such as petrol that makes a fire spread or burn more strongly 助燃剂 Police suspect that an accelerant was used in the arson attack. 警方怀疑这宗纵火袭击事件中使用了助燃剂。