chattering

UK:^*^*UK and possibly other pronunciationsUK and possibly other pronunciations/ˈtʃætərɪŋ/

chat•ter /ˈtʃætɚ/USA pronunciation v. [no object]

to talk rapidly and without purpose or direction;
jabber:The children were chattering about their weekend adventures.
to make rapid, speechlike sounds, such as a monkey or bird:The monkeys were chattering in the forest.
to make a rapid noise caused by the striking together of separate parts: teeth chattering from the cold.

chat•ter•er, n. [countable]

chat•ter (chat′ər),USA pronunciation v.i.

to talk rapidly in a foolish or purposeless way;
jabber.
to utter a succession of quick, inarticulate, speechlike sounds, as monkeys or certain birds.
to make a rapid clicking noise by striking together:His teeth were chattering from the cold.
Mechanical Engineering[Mach.](of a cutting tool or piece of metal) to vibrate during cutting so as to produce surface flaws on the work.

v.t.

purposeless or foolish talk.
a series of waves or ridges on the surface of a piece of metal that has been imperfectly drawn or extruded.
the act or sound of chattering.

chat′ter•ing•ly, adv.
chat′ter•y, adj.

Collins Concise English Dictionary © HarperCollins Publishers::

chatter /ˈtʃætə/ vb

to speak (about unimportant matters) rapidly and incessantly; prattle
(intransitive) (of birds, monkeys, etc) to make rapid repetitive high-pitched noises resembling human speech
(intransitive) (of the teeth) to click together rapidly through cold or fear
(intransitive) to make rapid intermittent contact with a component, as in machining, causing irregular cutting

Etymology: 13th Century: of imitative origin

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