APLASIA Meaning of APLASIA in English (ˈ)āˈplāzh(ē)ə, əˈp-, (ˈ)aˈp- noun( -s )Etymology: New Latin, from a- (II) + -plasia : the incomplete or faulty development of an organ or part Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012