婴儿期 Traditional form: 嬰兒期 Pinyin (reading): yīng'érqī Definitions: infancy Characters: 婴 - baby, infant; to bother 儿 - son, child 期 - a period of time; date, time; phase Traditional characters: 嬰 - baby, infant; to bother 兒 - son, child 期 - a period of time; date, time; phase