dihedral
a. இரு சமதள முகங்கள் கொண்ட, இருசமதள முகங்களிடைப்பட்ட.
Di*he"dral, a. Etym: [Gr. Diedral.] Defn: Having two plane faces; as, the dihedral summit of a crystal. Dihedral angle, the angular space contained between planes which intersect. It is measured by the angle made by any two lines at right angles to the two planes.