Collins Chinese Dictionary Plus (3rd edition), 2011:
chatter [ˈtʃætər]
I vi
1
[person] 喋喋不休 diédiébùxiū
2
(liter) [bird, animal] 唧唧叫 jījījiào
3
[teeth] 打战(戰) dǎzhàn
II n
[u]
1
[of people] 喋喋不休 diédiébùxiū
2
(liter) [of birds, animals] 唧唧声(聲) jījīshēng