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smokeless

adjective
 
 
/ˈsməʊk.ləs/ US  /ˈsmoʊk-/

Definition

UK not causing or allowing smoke: If you live in a smokeless zone you have to use smokeless fuels instead of coal.Products of fire smokeless tobacco US tobacco that is chewed or put in the mouthTobacco and smoking
(Definition of smokeless adjective from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

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