Definition of aplastic in US English:

aplastic

adjective

Medicine
  • Characterized by the failure of an organ or tissue to develop or to function normally.

    ‘aplastic coronary arteries’
    ‘a child with severe aplastic anemia’

Origin

Mid 19th century: from Greek aplastos ‘unshaped’ + -ic.

Pronunciation

aplastic

/ˌāˈplastik//ˌeɪˈplæstɪk/