Definition of quadrilateral in English: quadrilateral
noun A four-sided figure.
Example sentences
‘When four points are joined, they form a quadrilateral - a four-sided figure.’ ‘The students were also not aware of relationships among quadrilaterals, such as whether all squares are rectangles or vice versa.’ ‘Klein had noticed that given five points, four of them always appeared to define a convex quadrilateral.’ ‘Consider the first nontrivial instance of the equal-area problem, the quadrilateral shown in Figure 1.’ ‘In which Barbara gets a little taste of karmic justice, as the eternal triangle becomes a quadrilateral.’ ‘It's this quadrilateral KLMN we are going to be interested in.’ ‘My guess is that these X's and quadrilateral shapes are caused by windows across the street reflecting the light of the low sun.’ ‘In Treatise on the quadrilateral al-Tusi gave the first extant exposition of the whole system of plane and spherical trigonometry.’ ‘In front of the classroom, her teacher babbled on about how to prove a quadrilateral was a square.’ ‘The cross sectional outline is a quadrilateral having a foot surface, a dorsum and two ‘sides.’’ ‘Bennin then showed that the quadrilateral formed by a triangle's equalizer is, indeed, always a Pythagorean quadrilateral.’ ‘The complete quadrilateral is nothing but a 4-line in Morley's terminology.’ ‘This point is labelled A 3b, to emphasize that it is a degenerate quadrilateral.’ ‘The terrain I generated had a total of over 570000 quadrilaterals.’ ‘The scene here has a total of 800701 quadrilaterals, and looks like this.’ ‘For a quadrilateral ABCD find P minimising AP + BP + CP + DP.’ ‘As part of this project the golden quadrilateral was merged with the East-West and North-South corridors.’ ‘These are known as the diagonals of the complete quadrilateral.’ ‘Cut an 8x8 chessboard into two triangles and two quadrilaterals.’ ‘The square, another bench mark, has the smallest contour ratio of all quadrilaterals.’ adjective Having four straight sides.
Example sentences
‘This type of superstructure could be erected on foundations with either round or quadrilateral contours.’ ‘He said it had been decided to construct service roads for the highways being built under the golden quadrilateral project.’ ‘A quadrilateral meeting with Cambodia, Laos and Vietnam is also planned on the sidelines of the series of regular meetings.’ ‘It is clear from the quadrilateral case that these spaces have several connected components.’ ‘The bilobate living area has quadrilateral contours and is partly flanked by some horizontal logs and a vertical slab.’ ‘The perimeter wall, up to 2.75 m. thick, encloses an irregular quadrilateral area of about 1.59 ha.’ ‘The structure was little more than a hundred story tall segmented cylinder protruding from a quadrilateral base.’ ‘The motifs and figures represented include polychrome images of bison, masks, and quadrilateral signs of unknown meaning.’ ‘Techniques were developed that guaranteed all quadrilateral surfaces were planar.’ ‘It turns out there are many different pairs of quadrilateral shapes that form a nonperiodic tiling pattern.’ ‘As in Simone's painting, all the carpets depicted consist of rows of octagonal or quadrilateral compartments.’ ‘I am quite aware of the danger in the curved shapes in contrast to the relative safety of quadrilateral shapes.’ Synonyms
rectangular , oblong, right-angled, at right angles, perpendicular
View synonyms Origin Mid 17th century: from late Latin quadrilaterus (from Latin quadri- ‘four’ + latus, later- ‘side’) + -al.
Pronunciation quadrilateral /ˌkwɒdrɪˈlat(ə)r(ə)l/