Aplasia

2 definitions found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Aplasia \A*pla"si*a\, n. [NL.; Gr. ? priv. + ? a molding.]
     (Med.)
     1. Incomplete or faulty development.
        [Webster 1913 Suppl.]
  
     2. (Med.) a defect, retardation, or cessation of the process


        of generation of blood cells.
        [PJC]

From WordNet (r) 2.0 [wn]:

  aplasia
       n : failure of some tissue or organ to develop