quadrilateral, four-sided
(adjective) having four sides
quadrilateral, quadrangle, tetragon
(noun) a four-sided polygon
Source: WordNet® 3.1
quadrilateral (plural quadrilaterals)
A polygon with four sides.
An area defended by four fortresses supporting each other.
• See also quadrilateral
quadrilateral (not comparable)
Having four sides.
Source: Wiktionary
Quad`ri*lat"er*al, a. Etym: [L. quadrilaterus: cf. F. quadrilatère, quadrilatéral. See Quadri- and Lateral.]
Definition: Having four sides, and consequently four angles; quadrangular.
Quad`ri*lat"er*al, n.
1. (Geom.)
Definition: A plane figure having four sides, and consequently four angles; a quadrangular figure; any figure formed by four lines.
2. An area defended by four fortresses supporting each other; as, the Venetian quadrilateral, comprising Mantua, Peschiera, Verona, and Legnano. Complete quadrilateral (Geom.), the figure made up of the six straight lines that can be drawn through four points, A., B, C, I, the lines being supposed to be produced indefinitely.
Source: Webster’s Unabridged Dictionary 1913 Edition
15 November 2024
(adverb) involving the use of histology or histological techniques; “histologically identifiable structures”
According to Guinness World Records, on 25 September 2016, the Birla Institute of Management Technology (India) in Uttar Pradesh, India, constructed the largest coffee cups pyramid consisting of 23,821 cups. They used paper takeaway coffee cups to build the pyramid.
