Lexic.us

Definition of Pentagon

1. Noun. A government building with five sides that serves as the headquarters of the United States Department of Defense.

2. Noun. The United States military establishment.

3. Noun. A five-sided polygon.

Definition of Pentagon

1. n. A plane figure having five angles, and, consequently, five sides; any figure having five angles.

Definition of Pentagon

1. Proper noun. the headquarters of the United States of America's Department of Defense. ¹

2. Noun. (geometry) A polygon with five sides and five angles. ¹

¹ Source: wiktionary.com

Definition of Pentagon

1. a five-sided polygon [n -S]

Medical Definition of Pentagon

1. A plane figure having five angles, and, consequently, five sides; any figure having five angles. Regular pentagon, a pentagon in which the angles are all equal, and the sides all equal. Origin: Gr.; (see Penta-) + gwnia angle: cf. L. Pentagonium, F. Pentagone. Source: Websters Dictionary (01 Mar 1998)

Lexicographical Neighbors of Pentagon

pentaerythritol tetranitrate reductase pentaerythritols pentaerythrityl pentaerythrityls pentafid pentafluoride pentafluorides pentafluoroethane pentafluoropyridine pentafluorostyrene

pentaformylgitoxin pentagastrin pentagastrin test pentaglot pentaglycine pentagon pentagonal pentagonal prism pentagonal prisms pentagonally

pentagonals pentagonite pentagonous pentagons pentagram pentagrammatic pentagramme pentagrammes pentagrammic pentagrams

Literary usage of Pentagon

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

1. The Virginia Handbook by Blair Howard (2001)
"The Pentagon The Pentagon is, of course, the home of the United States Department of Defense ... Tours of the Pentagon are conducted every hour on the hour, ..."

2. Projective Geometry by Linnaeus Wayland Dowling (1917)
"The hexagon then degenerates into a pentagon with the tangent at one vertex. ... the vertices of any simple pentagon are points of a given curve of second ..."

3. Journal of the British Archaeological Association by British Archaeological Association (1848)
"Pentagon 0 Wall 0 21. Rectangle 0 Wall 0 22. Pentagon 2 Wall 2 23. Pentagon 0 Wall 2 24 ... Pentagon 2 Wall 2 27. Polygon 1 Wall 0 28. Pentagon 1 Wall 1 29. ..."

4. Mathematical Questions and Solutions by W. J. C. Miller (1875)
"Again, ID the five triangles outside this pentagon, five other points are taken at random, one in each, forming when joined another pentagon, ..."

5. Nature's Harmonic Unity: A Treatise on Its Relation to Proportional Form by Samuel Colman (1912)
"... The Pentagon Those various geometric forms from which all just proportional spaces may be produced in the most perfect manner will now be described, ..."

6. Mathematical Questions and Solutions, from "The Educational Times", with edited by Constance I Marks (1899)
"Let ABCDE be the given pentagon. Bisect FH in K, and let K be in CD. AK shall bisect the pentagon. For AAFK = A AFC and AACK, and A AFC = A ABC. ..."

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