smokeless

adjective

smoke·​less ˈsmōklə̇s 

1

: producing little or no smoke

smokeless fuel

smokeless combustion

2

: having little or no smoke

the smokeless air

a smokeless city

smokelessly adverb

smokelessness noun

plural -es

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Kids Definition

smokeless

adjective

smoke·​less

ˈsmō-kləs

: producing or containing little or no smoke

smokeless fuel