altricial

from WordNet (r) 3.0 (2006)

altricial
    adj 1: (of hatchlings) naked and blind and dependent on parents
           for food [ant: {precocial}]

from The Collaborative International Dictionary of English v.0.48

altricial \altricial\ adj.
   1. born naked and blind and dependent on parents for food; --
      of hatchlings. Opposite of {precocial}.
      [WordNet 1.5]