Relating to the angle denoting the junction of the mesial, lingual, and pulpal surfaces in a tooth cavity preparation. ... (05 Mar 2000) ... 
Type: Term Pronunciation: mē′zē-ō-ling′gwō-pŭl′păl Definitions: 1. Relating to the angle denoting the junction of the mesial, lingual, and pulpal surfaces in a tooth cavity preparation.