[ roh-tuhn-duh ]
/ roʊˈtʌn də /


a round building, especially one with a dome.
a large and high circular hall or room in a building, especially one surmounted by a dome.

Origin of rotunda

1680–90; alteration of Italian rotonda, noun use of feminine of rotondo < Latin rotundus rotund Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for rotunda

British Dictionary definitions for rotunda


/ (rəʊˈtʌndə) /


a building or room having a circular plan, esp one that has a dome

Word Origin for rotunda

C17: from Italian rotonda, from Latin rotundus round, from rota a wheel
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for rotunda



"round building," 1680s, from Italian rotonda, especially the Pantheon, from noun use of Latin rotunda, fem. of rotundus "round" (see rotund). Meaning "circular hall or room within a building" is from 1780.

Online Etymology Dictionary, © 2010 Douglas Harper