Heptagram Definition
    noun
  
 Either of two regular seven-pointed stars, drawn with the construction lines retained; a heptangle.
Wiktionary 
(rare) A heptagon.
Wiktionary 
Other Word Forms of Heptagram
Noun
Singular:
 heptagramPlural:
 heptagramsOrigin of Heptagram
From hepta- + -gram.
From Wiktionary
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