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Thesaurus: heptagonal

Having seven angles or sides.

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Definitions

  1. a. Having seven angles or sides.
  2. Having seven angles or sides. Heptagonal numbers (Arith.), the numbers of the series 1, 7, 18, 34, 55, etc., being figurate numbers formed by adding successively the terms of the arithmetical series 1, 6, 11, 16, 21, etc.
  3. Having seven angles or sides. Heptagonal numbers (Arith.), thenumbers of the series 1, 7, 18, 34, 55, etc., being figurate numbersformed by adding successively the terms of the arithmetical series 1,6, 11, 16, 21, etc.
  4. a. Having seven angles or sides.