Ma·gen Da·vid also Mo·gen Da·vid (mŏ'gən dô'vĭd, dā'vĭd, mä-gěn' dä-vēd') n. A six-pointed star, a symbol of Judaism, that is formed by placing two triangles together, one inverted over the other or interlaced. Also called Shield of David, Star of David.
[Hebrew māgēn dāwīd, shield of David : māgēn, shield (from gānan, to cover; see gnn in Semitic roots) + Dāwīd, David; see dwd in Semitic roots.]