tur ‧ pen ‧ tine /ˈtɜːpəntaɪn $ ˈtɜːr-/ BrE AmE noun [uncountable]
[ Date: 1300-1400 ; Language: Old French ; Origin: tourbentine , from Latin terebinthina , from terebinthus tree from which turpentine is obtained, from Greek terebinthos ]
a type of oil used for making paint more liquid or removing it from clothes, brushes etc