'Chattering' definitions:

Definition of 'chattering'

noun

The rapid series of noises made by the parts of a machine [syn: chatter, chattering]

noun

The high-pitched continuing noise made by animals (birds or monkeys) [syn: chatter, chattering]

From: GCIDE

Chatter \Chat"ter\, v. i. [imp. & p. p. Chattered; p. pr. & vb. n. Chattering.] [Of imitative origin. Cf. Chat, v. i. Chitter.]
1. To utter sounds which somewhat resemble language, but are inarticulate and indistinct. [1913 Webster]
The jaw makes answer, as the magpie chatters. --Wordsworth. [1913 Webster]
2. To talk idly, carelessly, or with undue rapidity; to jabber; to prate. [1913 Webster]
To tame a shrew, and charm her chattering tongue. --Shak. [1913 Webster]
3. To make a noise by rapid collisions. [1913 Webster]
With chattering teeth, and bristling hair upright. --Dryden. [1913 Webster]

From: GCIDE

Chattering \Chat"ter*ing\, n. 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. [1913 Webster]