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Definition of Enneagon
1. n. A polygon or plane figure with nine sides and nine angles; a nonagon.
Definition of Enneagon
1. Noun. (geometry) A polygon with nine sides; a nonagon. ¹
¹ Source: wiktionary.com
Definition of Enneagon
1. a nonagon [n -S] - See also: nonagon
Medical Definition of Enneagon
1.
Lexicographical Neighbors of Enneagon
Literary usage of Enneagon
Below you will find example usage of this term as found in modern and/or classical literature:
1. The Harmony of the World by Johannes Kepler, A. M. (Alistair Matheson) Duncan, Eric J. Aiton, Judith Veronica Field (1997)
"Concerning the enneagon, whose number of sides, 9, is the square of the first
odd Prime, namely three, there has been a contest among Geometers, ..."
2. Geometry, Plane, Solid, and Spherical, in Six Books: To which is Added, in by Pierce Morton (1830)
"Still there are many regular figures, as the heptagon, enneagon, ... For a second
example, let us take the enneagon, or, as it is sometimes called, ..."
3. A History of Greek Mathematics by Thomas Little Heath (1921)
"If AB be the srde (a) of an enneagon or ... For the enneagon AC- = QAB'2, whence
BC2 = 8AB* or approximately ^^/-AB2, and BC = \7-a; therefore (area of ..."
4. The Collected Mathematical Papers of Arthur Cayley by Arthur Cayley (1891)
"The foregoing values show that 23 and 1234 (which belong to the hexagon and the
enneagon) divide by c (which belongs to the triangle), and that 234 (which ..."
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