2. Noise made by collision of the teeth, as in shivering.

CHATTERATION
Chat*ter*a"tion, n.

Defn: The act or habit of chattering. [Colloq.]

CHATTERER
Chat"ter*er, n.

1. A prater; an idle talker.

2. (Zoöl.)

Defn: A bird of the family Ampelidæ — so called from its monotonous note. The Bohemion chatterer (Ampelis garrulus) inhabits the arctic regions of both continents. In America the cedar bird is a more common species. See Bohemian chatterer, and Cedar bird.

CHATTERING
Chat"ter*ing, n.

Defn: The act or habit of talking idly or rapidly, or of making inarticulate sounds; the sounds so made; noise made by the collision of the teeth; chatter.

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.