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Pentagon

Pentagon


pen·ta·gon    Audio Help   (pěn'tə-gŏn')   

n.  

  1. A polygon having five sides and five interior angles.

  2. Pentagon A five-sided building near Washington, D.C., containing the U.S. Department of Defense and the offices of the U.S. Armed Forces. Used with the.


[Late Latin pentagōnum, from Greek pentagōnon : penta-, penta- + -gōnon, -gon.]
pen·tag'o·nal (pěn-tāg'ə-nəl) adj., pen·tag'o·nal·ly adv.
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The American Heritage® Dictionary of the English Language, Fourth Edition
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