(of a young bird or other animal) hatched or born in an undeveloped state and requiring care and feeding by the parents (幼鸟等)晚成雏的。 亦称 nidicolous ■(of a particular species) having such young (某特定物种)养育晚成雏的
noun
an altricial bird 晚成雏鸟类
语源
late 19th cent.: from Latin altrix, altric-, feminine of altor 'nourisher', from alere 'nourish'