Longman Dictionary of Contemporary English homepage

Language: Old English
Origin: teoru

tar

1 noun
     
Related topics: Tobacco, Building, Roads
tar1 [uncountable]
1TTRTB a black substance, thick and sticky when hot but hard when cold, used especially for making road surfaces ➔ coal tar
2DFT a sticky substance that forms when tobacco burns, and that gets into the lungs of people who smoke:
high tar cigarettes
Definition from the Longman Dictionary of Contemporary English
Advanced Learner's Dictionary.

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