smokeless

from WordNet (r) 3.0 (2006)

smokeless
    adj 1: emitting or containing little or no smoke; "smokeless
           factory stacks"; "smokeless fuel"; "a smokeless
           environment" [ant: {smoky}]

from The Collaborative International Dictionary of English v.0.48

Smokeless \Smoke"less\, a.
   Making or having no smoke. "Smokeless towers." --Pope.
   [1913 Webster]

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