婴幼儿 Traditional form: 嬰幼兒 Pinyin (reading): yīngyòu'ér Definitions: baby Characters: 婴 - baby, infant; to bother 幼 - infant, young child; immature 儿 - son, child Traditional characters: 嬰 - baby, infant; to bother 幼 - infant, young child; immature 兒 - son, child