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A polygon with four sides and four angles; a quadrilateral.

[Late Latin tetragōnum, from Greek tetragōnon, square, from neuter of Greek tetragōnos, having four angles : tetra-, tetra- + -gōnos, angled; see -gon.]

te·trag′o·nal (tĕ-trăg′ə-nəl) adj.
te·trag′o·nal·ly adv.


(Mathematics) a less common name for quadrilateral2
[C17: from Greek tetragōnon; see tetra-, -gon]


(ˈtɛ trəˌgɒn)

a polygon having four angles or sides; a quadrangle or quadrilateral.
[1620–30; < Greek tetrágōnon]
te•trag′o•nal (-ˈtræg ə nl) adj.
te•trag′o•nal•ly, adv.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.tetragon - a four-sided polygontetragon - a four-sided polygon      
polygon, polygonal shape - a closed plane figure bounded by straight sides
parallelogram - a quadrilateral whose opposite sides are both parallel and equal in length
trapezium - a quadrilateral with no parallel sides
trapezoid - a quadrilateral with two parallel sides


[ˈtetrəgən] Ntetrágono m
References in periodicals archive ?
The board of directors of Tetragon has declared a dividend of USD 0.
the issuer) and TCI-Flatiron CLO 2017-1 LLC (the co-issuer) comprise an arbitrage cash flow collateralized loan obligation (CLO) that will be managed by NYL Investors LLC, as sub-advisor to the collateral manager, TCI Capital Management II LLC (a subsidiary of Tetragon Financial Group Limited and an affiliate of LCM Asset Management LLC).
Tetragon Financial Group Limited (LSE: TFG) has said that its board of directors has declared a dividend of USD0.
Guernsey closed-ended investment company TFG's Tetragon Financial Group Master Fund Ltd.
TETRAGON will use the Twinning Advanced methodology to enhance SMEs innovation capacity by providing them with better innovation support in Technology Transfer.
i) If the minimum matching error point is tetragon, calculate match error of five black points in new window as shown in Figure 2(b) and find the minimum matching error point.
S]HJCBA, and the deadweight loss R0 is represented by the sum of the lightly and heavily shaded areas (the tetragon ABCD).
We lost two towers, the Pentagon became a tetragon and New Orleans sank.
For airspace analysis and distribution, the method can be also applied and is based on the unified amount of the flights and discretion of airspace using hexagon and tetragon grids (Klein 2005); the total number of flight messages in each cell of the grid is evaluated.
Jones created a reconstruction of Stonehenge, which had little relation to the existing ruins of Stonehenge, with four equilateral triangles within a circle, these overlaying equilateral triangles that formed a four-sided tetragon and the six 'columns' in the centre that formed a hexagon (see Figure 1).
After the reaction had proceeded for 10 h, the caves presented diversified shapes such as quasi trigon, tetragon, and so on (Fig.