adjective see: old Date: 1872 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
Meaning of ALTRICIAL in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012