from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. The state or condition of being smokeless.

from The Century Dictionary and Cyclopedia

  • n. The character or state of being smokeless.


Sorry, no etymologies found.


  • The whole question of smoke and smokelessness is to a large extent a comparative one.

    Steam, Its Generation and Use

  • To repeat, it must be emphatically borne in mind that the question of smokelessness is largely one of degree, and dependent to an extent much greater than is ordinarily appreciated upon the handling of the fuel and the furnaces by the operators, be these furnaces hand fired or automatically fired.

    Steam, Its Generation and Use

  • It is safe to say, however, that no plant will operate smokelessly under any and all conditions of service, nor is there a plant in which the degree of smokelessness does not depend largely upon the intelligence of the operating force.

    Steam, Its Generation and Use

  • From the standpoint of smokelessness, undoubtedly the best results are obtained with a good stoker, properly operated.

    Steam, Its Generation and Use

  • The principle upon which these stokers base their claims for efficiency and smokelessness is that the green fuel is fed under the coked and burning coal, the volatile gases from this fresh fuel being heated and ignited in their passage through the hottest portion of the fire on the top.

    Steam, Its Generation and Use

  • Smoke -- The question of smoke and smokelessness in burning fuels has recently become a very important factor of the problem of combustion.

    Steam, Its Generation and Use

  • The operatives must realize that smokeless stacks are not necessarily the indication of good combustion for, as has been pointed out, absolute smokelessness is oftentimes secured at an enormous loss in efficiency through excess air.

    Steam, Its Generation and Use

  • This smokelessness can be understood from the fact that the products of combustion are nearly all non-condensible gases, and contain no solid products of combustion which would cause smoke.

    Nitro-Explosives: A Practical Treatise

  • The isolation of his manner and colour lent him the appearance of a creature from Tophet, who had strayed into the pellucid smokelessness of this region of yellow grain and pale soil, with which he had nothing in common, to amaze and to discompose its aborigines.

    Tess of the d'Urbervilles

  • When either arm opens fire within sight of the enemy its position can be almost invariably detected by the field-glass, irrespective of the smokelessness or non-smokelessness of its ammunition.

    Camps, Quarters, and Casual Places


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