parallelogram
noun
par·al·lel·o·gram ˌper-ə-ˈle-lə-ˌgram 
ˌpa-rə-
: a quadrilateral with opposite sides parallel and equal
Example Sentences
Rectangles, squares, and rhombuses are all parallelograms.
Recent Examples on the Web The terminal is shaped like an extruded parallelogram that seemingly floats above the service road. 
Michael Verdon, Robb Report, 17 Jan. 2022 Viewed on a map of the development, the five-story structure looks something like a tilted parallelogram, a design that creates triangular units on the corners. BostonGlobe.com, 22 Oct. 2021 Lyra Vega is the brightest star in the tiny and parallelogram-shaped constellation of Lyra, the Harp. Jamie Carter, Forbes, 5 Sep. 2021 The original home was 1,800 square feet and designed as a parallelogram, incorporating angles throughout the home. Abigail Rosenthal, Chron, 29 July 2021 My door is a parallelogram, because of the slope, and so far it's worked fine. Ryan D'agostino, Popular Mechanics, 6 Mar. 2021 His greatest mark on Boston is the Hancock building, an 800-foot-tall glass parallelogram that towers over Trinity Church, a beloved Romanesque edifice by the 19th-century architect Henry Hobson Richardson. Fred A. Bernstein, New York Times, 4 Mar. 2020 Until 2018 there was never a doubt that the boundaries, a jagged parallelogram over North Texas’ two largest counties, would hold steady. Nic Garcia, Dallas News, 1 Mar. 2020 The tower would gradually widen at the northeast and southwest corners, transitioning from an efficient rectangle at the base to an expansive parallelogram at the top. Ryan Ori, chicagotribune.com, 16 Oct. 2019 See More
Michael Verdon, Robb Report, 17 Jan. 2022 Viewed on a map of the development, the five-story structure looks something like a tilted parallelogram, a design that creates triangular units on the corners. BostonGlobe.com, 22 Oct. 2021 Lyra Vega is the brightest star in the tiny and parallelogram-shaped constellation of Lyra, the Harp. Jamie Carter, Forbes, 5 Sep. 2021 The original home was 1,800 square feet and designed as a parallelogram, incorporating angles throughout the home. Abigail Rosenthal, Chron, 29 July 2021 My door is a parallelogram, because of the slope, and so far it's worked fine. Ryan D'agostino, Popular Mechanics, 6 Mar. 2021 His greatest mark on Boston is the Hancock building, an 800-foot-tall glass parallelogram that towers over Trinity Church, a beloved Romanesque edifice by the 19th-century architect Henry Hobson Richardson. Fred A. Bernstein, New York Times, 4 Mar. 2020 Until 2018 there was never a doubt that the boundaries, a jagged parallelogram over North Texas’ two largest counties, would hold steady. Nic Garcia, Dallas News, 1 Mar. 2020 The tower would gradually widen at the northeast and southwest corners, transitioning from an efficient rectangle at the base to an expansive parallelogram at the top. Ryan Ori, chicagotribune.com, 16 Oct. 2019 See More Word History
Etymology
Late Latin or Greek; Late Latin parallelogrammum, from Greek parallēlogrammon, from neuter of parallēlogrammos bounded by parallel lines, from parallēlos + grammē line, from graphein to write — more at carve
First Known Use
1570, in the meaning defined above
Kids Definition
parallelogram
noun
par·al·lel·o·gram ˌper-ə-ˈle-lə-ˌgram
: a plane figure with four sides whose opposite sides are parallel and equal