Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A polygon with ten angles and ten sides.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A polygon with ten sides and ten angles.

from the GNU version of the Collaborative International Dictionary of English

  • n. A plane figure having ten sides and ten angles; any figure having ten angles. A regular decagon is one that has all its sides and angles equal.

from The Century Dictionary and Cyclopedia

  • n. In geometry, a plane figure having ten sides and ten angles. When all the sides and angles are equal, it is a regular decagon.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. a polygon with 10 sides and 10 angles

Etymologies

Medieval Latin decagōnum, from Greek dekagōnon, from neuter of dekagōnos, having ten angles : deka, ten.
(American Heritage® Dictionary of the English Language, Fourth Edition)
deca- + -gon (Wiktionary)

Examples

  • In Friday's edition of the journal Science, Lu and Princeton physicist Paul Steinhardt report finding a set of polygon-shaped tiles — a decagon, pentagon, diamond, bowtie and hexagon — that were arranged into distinctive patterns found on major Islamic buildings from the 12th through 15th centuries.

    Geometry Meets Arts in Islamic Tiles

  • To put it simply, this bike climbs like a squirrel, descends like a greased squirrel on a luge, corners like a decagon, and accelerates like a methamphetamine-addicted rabbit.

    Happy Birthday To Me: BSNYC Turns 1

  • Art historians have until now assumed that the intricate tilework had been created using straight edges and compasses, but the study in Science suggests the Islamic artisans were using a basic toolkit of girih tiles made up of shapes such as the decagon, pentagon, diamond and hexagon.

    Archive 2007-02-01

  • These mosaics are formed from five polygons -- a decagon, a pentagon, a lozenge, a hexagon and a triangle -- each representing a unique decorative motif.

    Archive 2007-02-01

  • Running through each polygon a decagon, pentagon, diamond, bowtie or hexagon is a decorative line.

    Archive 2007-02-01

  • In Friday's edition of the journal Science, Lu and Princeton physicist Paul Steinhardt report finding a set of polygon-shaped tiles -- a decagon, pentagon, diamond, bowtie and hexagon -- that were arranged into distinctive patterns found on major Islamic buildings from the 12th through 15th centuries.

    Archive 2007-02-01

  • I try and look at the good side, but how can you you see the good side when you're an decagon with 9 bad sides?

    sierrazen Diary Entry

  • E, a decagon fragment, which contains a somewhat less full account of the Kirbit campaign, and a picturesque narrative of the opening of diplomatic relations with Lydia.

    Assyrian Historiography

  • The first known was Cylinder A, a decagon, whose lines divide the document into thirteen parts.

    Assyrian Historiography

  • The first of these finds (crd. 36°) and (crd. 72°) from the geometry of the inscribed pentagon and decagon; the second

    The Legacy of Greece Essays By: Gilbert Murray, W. R. Inge, J. Burnet, Sir T. L. Heath, D'arcy W. Thompson, Charles Singer, R. W. Livingston, A. Toynbee, A. E. Zimmern, Percy Gardner, Sir Reginald Blomfield

Wordnik is becoming a not-for-profit! Read our announcement here.

Comments

Log in or sign up to get involved in the conversation. It's quick and easy.