怔忡 Traditional form: 怔忡 Pinyin (reading): zhēngchōng Definitions: (of the heart) palpitating with fear palpitation (Chinese medicine) Characters: 怔 - frightened, startled, terrified 忡 - sad, grieving; distressed, uneasy Traditional characters: 怔 - frightened, startled, terrified 忡 - sad, grieving; distressed, uneasy