Main Entry: tar

Pronunciation: \ˈtär\

Function: noun

1 : any of various dark brown or black bituminous usually odorous viscous liquids obtained by destructive distillation of organic material (as wood, coal, or peat) ; especially : one used medicinally (as to treat skin diseases)—see coal tar, juniper tar, pine tar
2 : a substance in some respects resembling tar ; especially : a condensable residue present in smoke from burning tobacco that contains combustion by-products (as resins, acids, phenols, and essential oils)