/ ˈsməʊkləs; NAmE ˈsmoʊk-/ adjective [ usually before noun ]
1.
able to burn without producing smoke :
smokeless fuels
2.
free from smoke :
a smokeless zone (= where smoke from factories or houses is not allowed)
/ ˈsməʊkləs; NAmE ˈsmoʊk-/ adjective [ usually before noun ]
1.
able to burn without producing smoke :
smokeless fuels
2.
free from smoke :
a smokeless zone (= where smoke from factories or houses is not allowed)
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005