chattering
verb
Definitions
To talk idly.
Example: They knitted and chattered the whole time.
Of teeth, machinery, etc, to make a noise by rapid collisions.
Example: He was so cold that his teeth were chattering.
To utter sounds which somewhat resemble language, but are inarticulate and indistinct.
noun
Definitions
A noise that chatters.
Output fluctuation before reaching a stable condition.