tar
nounmasculine/alkɐˈtɾɐ̃w̃/medium
al·ca·trão
Definition
A black, viscous liquid obtained by the destructive distillation of organic matter such as coal, wood, or petroleum, used in road surfacing, waterproofing, and as a source of chemical products.
The road workers were laying fresh tar.
Coal tar is used in the manufacture of dyes and drugs.
Common collocations
coal tarroad tartar smellwood tar
Etymology
Do árabe 'al-qatrān'.