Lexic.us

Definition of Heptagonal

1. a. Having seven angles or sides.

Definition of Heptagonal

1. Adjective. Having seven angles and sides. ¹

¹ Source: wiktionary.com

Definition of Heptagonal

1. [adj]

Medical Definition of Heptagonal

1. Having seven angles or sides. Heptagonal numbers, 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. Origin: Cf. F. Heptagonal. Source: Websters Dictionary (01 Mar 1998)

Lexicographical Neighbors of Heptagonal

Literary usage of Heptagonal

Below you will find example usage of this term as found in modern and/or classical literature:

1. List of the Specimens of Dipterous Insects in the Collection of the British by Francis Walker (1849)
"Discal veinlets forming two sides of the indistinctly heptagonal discal ... indistinctly heptagonal, with three primary sides, the fourth or apical one very ..."

2. Miscellaneous Inscriptions in the Yale Babylonian Collection by Albert Tobias Clay (1915)
"heptagonal CYLINDERS. The Paris dealer from whom these cylinders were purchased gave Nippur as the provenance, which seems correct from the fact that ..."

3. Report on the Geological Survey of the State of Iowa: Embracing the Results by James Hall, Josiah Dwight Whitney (1858)
"Page 580, second line from top, for ' pentagonal', read ' hexagonal'. Page 581, sixth line from top, after ' hexagonal', add ' and heptagonal'. ..."

4. Bulletin by Geological Society of America (1896)
"on either side and a heptagonal plate on the left (right as viewed from without). Six rows above pentagon 7 the eighth column is introduced hy pentagon 8, ..."

5. First[-fifth] Report of Progress of the Geological Survey of Missouri by George Clinton Swallow, Abram Litton, Benjamin Franklin Shumard, Frederick Hawn (1855)
"1tt radial pieces, three hexagonal and two heptagonal, rather higher than tbe base, length and breadth about equal, each one bearing a very prominent ..."

6. Proceedings of the Academy of Natural Sciences of Philadelphia by Academy of Natural Sciences of Philadelphia (1868)
"First radial pieces about twice and a half as wide as high, two heptagonal and three hexagonal, each one swelling out so as to form a moderately prominent, ..."

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