Relating to the point (trihedral) angle formed by the junction of a distal, buccal, and pulpal wall of a cavity. ... (05 Mar 2000) ... 
Type: Term Pronunciation: dis′tō-bŭk′ō-pŭl′păl Definitions: 1. Relating to the point (trihedral) angle formed by the junction of a distal, buccal, and pulpal wall of a cavity.