五芒星形
Pentagram \Pen"ta*gram\, n. [Gr. ?, neut. of ? having five lines. See {Penta-}, and {-gram}.] A pentacle or a pentalpha. ``Like a wizard pentagram.'' --Tennyson.
pentagram n : a star with 5 points; formed by 5 straight lines between the vertices of a pentagon and enclosing another pentagon [syn: {pentacle}]