from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun A polygon with four sides and four angles; a quadrilateral.
from The Century Dictionary.
- noun In geometry, a figure having four angles; a quadrangle; a quadrilateral.
- noun In astrology, an aspect of two planets with regard to the earth when they are distant from each other 90°, or the fourth part of a circle; quartile aspect; square.
from the GNU version of the Collaborative International Dictionary of English.
- noun (Geom.) A plane figure having four sides and angles; a quadrangle, as a square, a rhombus, etc.
- noun (Astrol.) An aspect of two planets with regard to the earth when they are distant from each other ninety degrees, or the fourth of a circle.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun geometry, rare A
- noun An
aspectof two planetswith regard to the Earth when they are distant from each other ninety degrees, or a quarter-circle.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- noun a four-sided polygon
from The American Heritage® Dictionary of the English Language, 4th Edition
I'm sure she's pulling her gray hair out at missing her chance to baffle both kids and parents with "tetragon", but hey, she could always write a sequel!)
“A tetragon that acts like an octahedron,” the Doctor said.
Be there or be an equilateral tetragon with four eight-point angles.
Eight, the number of perfection for every tetragon; four, the number of the Gospels; five, the number of the zones of the world; seven, the number of the gifts of the Holy Ghost.
This was an octagonal construction that from a distance seemed a tetragon (a perfect form, which expresses the sturdiness and impregnability of the City of God), whose southern sides stood on the plateau of the abbey, while the northern ones seemed to grow from the steep side of the mountain, a sheer drop, to which they were bound.
It was long, built around two sections of the tetragon, and with low divans beneath the view windows.
Pg. 108, tetragon changed to tarragon (16,900 tarragon plants).
A figure that is bounded by four straight lines is termed a quadrangle, quadrilateral or tetragon.
Scalene triangle; a quadrangle; quadrilateral or tetragon 59
Page 520 lakes or ponds, vast tetragon terraces, chunk yards*
Travels Through North & South Carolina, Georgia, East & West Florida, the Cherokee Country, the Extensive Territories of the Muscogulges, or Creek Confederacy, and the Country of the Chactaws; Containing An Account of the Soil and Natural Productions of Those Regions, Together with Observations on the Manners of the Indians.