Found 2 items, similar to aplasia.
English → English (WordNet) Definition: aplasia aplasia n : failure of some tissue or organ to develop
English → English (gcide) Definition: Aplasia 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]