ㄓㄥㄔㄨㄥzhēngchōng

  1. 中醫跳動心慌不安 怔忡」。

  2. 驚懼害怕 怔忡不安」。

(of the heart)​ palpitating with fear, palpitation (Chinese medicine)​
Palpitation (S, Med)​