echolalia

【医】 模仿言语

形容词:echolalic 

ech.o.la.li.a

n.（名词）
Psychiatry The immediate and involuntary repetition of words or phrases just spoken by others, often a symptom of autism or some types of schizophrenia.
【精神病学】 言语模仿症：立即且不自觉地重复别人刚刚说过的词或短语，常为孤独症或某些精神分裂症的症状
An infant`s repetition of the sounds made by others, a normal occurrence in childhood development.
幼儿学语：婴儿重复别人发出的声音，是幼儿成长过程中的正常现象

来源：
echo
echo
Greek lalia [talk] from lalos [talkative]
希腊语 lalia [谈话] 源自 lalos [健谈的]

【引伸】
ech.ola.lic