denatured alcohol
noun [ U ] US uk/diːˌneɪ.tʃəd ˈæl.kə.hɒl/ us/diːˌneɪ.tʃɚd ˈæl.kə.hɑːl/ (UK methylated spirits , informal meths)
变性酒精
a liquid made from alcohol and other chemicals, used to remove dirty marks and as a fuel in small heaters and lights