chatter mark

Noun
  1. Marks on a glaciated rock caused by the movement of a glacier (synset 111456277)
    is a type of: eating away, eroding, erosion, wearing, wearing away - (geology) the mechanical process of wearing or grinding something down (as by particles washing over it)
  2. A mark made by a chattering tool on the surface of a workpiece (synset 104700135)
    is a type of: blemish, defect, mar - a mark or flaw that spoils the appearance of something (especially on a person's body)

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