ac ‧ e ‧ tone /ˈæsətəʊn, ˈæsɪtəʊn $ -toʊn/ BrE AmE noun [uncountable]
[ Date: 1800-1900 ; Language: German ; Origin: azeton , from Latin acetum ; ⇨ ↑ acetic acid ]
a clear liquid with a strong smell, used for cleaning surfaces, making paint more liquid, or for making other chemical substances