'Chatter mark' definitions:
Definition of 'chatter mark'
From: WordNet
noun
Marks on a glaciated rock caused by the movement of a glacier
noun
A mark made by a chattering tool on the surface of a workpiece
Definition of 'Chatter mark'
From: GCIDE
- Chatter mark \Chat"ter mark`\ (a) (Mach.) One of the fine undulations or ripples which are formed on the surface of work by a cutting tool which chatters. (b) (Geol.) A short crack on a rock surface planed smooth by a glacier. [Webster 1913 Suppl.]