emitting, producing, or having little or no smoke.
having or producing little or no smoke: smokeless fuel
noun 1. any of various substitutes for ordinary gunpowder that give off little or no smoke, especially one composed wholly or mostly of guncotton. smokeless powder noun 1. any one of a number of explosives that burn with relatively little smoke. They consist mainly of nitrocellulose and are used as propellants
noun 1. snuff1 (def 9). 2. chewing tobacco.
- Smokeless zone
noun 1. an area designated by the local authority where only smokeless fuels are permitted
noun 1. a day during which smokers are encouraged to abstain from smoking as part of a campaign to emphasize the hazards of the practice.