A person who uses petrol to set fire to a building or other property.
Late 19th century; earliest use found in Appletons' Journal. From French pétroleur from pétrole + -eur.
英汉双解词典包含464360条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。