Congenital absence of one or more ribs; usually associated with absent transverse process or processes. ... Origin: a-priv. + G. Pleura, rib ... (05 Mar 2000) ... 
Type: Term Pronunciation: ā-plūr′ē-ă Definitions: 1. Congenital absence of one or more ribs; usually associated with absent costal process or processes.
apleuria Congenital absence of one or more ribs.