資料來源 : pyDict

四分面的

資料來源 : Webster's Revised Unabridged Dictionary (1913)

Tetartohedral \Te*tar`to*he"dral\, a. [Gr. ? fourth + ? base.]
   (Crystallog.)
   Having one fourth the number of planes which are requisite to
   complete symmetry. -- {Te*tar`to*he"dral*ly}, adv.