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1. A triangular lyre or harp of Roman and Greek antiquity.
2. See triplicity.
3. Archaic A triangle.
[Latin trigōnum, from Greek trigōnon, from neuter of trigōnos, triangular : tri-, tri- + gōniā, angle; see -gon.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
1. (Historical Terms) (in classical Greece or Rome) a triangular harp or lyre
2. (Mathematics) an archaic word for triangle
[C17: via Latin from Greek trigōnon triangle. See tri-, -gon]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
[1555–65; < Latin trigōnum triangle < Greek trígōnon]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
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|Noun||1.||trigon - a three-sided polygon |
isosceles triangle - a triangle with two equal sides
oblique triangle - a triangle that contains no right angle
scalene triangle - a triangle with no two sides of equal length
|2.||trigon - (astrology) one of four groups of the zodiac where each group consists of three signs separated from each other by 120 degrees|
astrology, star divination - a pseudoscience claiming divination by the positions of the planets and sun and moon
|3.||trigon - a triangular lyre of ancient Greece and Rome|
lyre - a harp used by ancient Greeks for accompaniment
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