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heptagonHEP'TAGON, n. [Gr. seven, and an angle.] In geometry, a figure consisting of seven sides and as many angles. In fortification, a place that has seven bastions for defense. |
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heptagonHEP'TAGON, n. [Gr. seven, and an angle.] In geometry, a figure consisting of seven sides and as many angles. In fortification, a place that has seven bastions for defense. |