parallelogram

noun

par·​al·​lel·​o·​gram ˌper-ə-ˈle-lə-ˌgram 

ˌpa-rə-

: a quadrilateral with opposite sides parallel and equal

Examples of parallelogram in a Sentence

Rectangles, squares, and rhombuses are all parallelograms.

Recent Examples on the Web

Durston Gear Durston uses its signature X-Mid diagonal floor, which in this case is a proper parallelogram. —New Atlas, 6 May 2025

After the birds understood this game, the researchers started showing them sets of shapes that included squares, parallelograms, or irregular quadrilaterals. —Nell Greenfieldboyce, NPR, 12 Apr. 2025

Finished in 2006, the new 7 World Trade Center is a crystalline parallelogram, meticulously detailed and situated to reopen views along Greenwich Street that had been obscured by the previous building. —David W. Dunlap, New York Times, 27 Mar. 2025

Mid ice, an eerie parallelogram of light, like the empty spot for Moira Shearer in The Red Shoes. —Thomas G. Moukawsher, Newsweek, 5 Feb. 2025

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

Rhymes for parallelogram

• interferogram
• abraham
• anagram
• cablegram
• cofferdam
• dendrogram
• diagram
• diaphragm
• epigram
• hexagram
• histogram
• hologram

Kids Definition

parallelogram

noun

par·​al·​lel·​o·​gram ˌpar-ə-ˈlel-ə-ˌgram 

: a four-sided figure whose opposite sides are parallel and of equal length