having four angles and four sides; having the shape of a quadrangle.

Origin of quadrangular

1585–95; < Late Latin quadrangulāris, equivalent to quadrangul(um) quadrangle + -āris -ar1
Related formsquad·ran·gu·lar·ly, adverbquad·ran·gu·lar·ness, nounsub·quad·ran·gu·lar, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for quadrangular

Historical Examples of quadrangular

  • It is quadrangular in form, with a door and portico on its north front.

  • The plan of these buildings is quadrangular, with a courtyard in the centre.

    The Western World

    W.H.G. Kingston

  • I could see the Mexican, from where I lay, as he crossed the quadrangular patio.

  • Varieties: Oblong, rounded at the base, blunt and quadrangular at the apex.

  • It has glaucous leaves, and the fruit-pods are quadrangular in form.

    The Sea Shore

    William S. Furneaux

Word Origin and History for quadrangular

early 15c., from Medieval Latin quadrangularis "having four corners," from Late Latin quadrangulus (see quadrangle).

Online Etymology Dictionary, © 2010 Douglas Harper