Altricial

altricial \al-ˈtri-shəl\ adjective: being hatched or born or having young that are hatched or born in a very immature and helpless condition so as to require care for some time {altricial birds}

Etymology: Latin altric-, altrix, feminine of altor one who nourishes, from alere to nourish

Altrix is mentioned above as the feminine form of "one who nourishes." So if a dominatrix is a woman who dominates and an editrix is a female editor, wouldn't an altrix be a mother?