bitumen
noun /ˈbɪtʃʊmən/
/bɪˈtuːmən/
[uncountable]- a black sticky substance obtained from oil, used for covering roads or roofs
- (Australian English, informal) the surface of a road that is covered with tar
- a kilometre and a half of bitumen
Word Originlate Middle English (denoting naturally occurring asphalt used as mortar): from Latin.