Fouling

//ˈfaʊlɪŋ// noun, verb

Definitions

Noun
  1. 1
    The adhesion of a foreign material onto a surface, especially so as to reduce its functionality. countable, uncountable

    "Probably, rifling evolved from the early observation of the feathers on an arrow-and from the practical results of cutting channels in a musket, originally to reduce fouling, then because it was found to improve accuracy of the shot."

Verb
  1. 1
    present participle and gerund of foul form-of, gerund, participle, present

    "A new type of fouling point indicator is being tried out by the London Transport Executive. Until now the standard method of indicating the point nearest to a junction of two stabling roads where a train can stand without fouling the adjacent road has been by fixing the letters "FP" [fouling point] to the sleepers of the road concerned."

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