Simple Definition of rotunda
: a large, round room and especially one covered by a dome
Full Definition of rotunda
1 : a round building; especially : one covered by a dome
2 a : a large round room b : a large central area (as in a hotel)
Examples of rotunda in a sentence
We stood inside the rotunda of the U.S. Capitol Building.
Origin and Etymology of rotunda
Italian rotonda, from Latin rotunda, feminine of rotundus
First Known Use: 1645
Medical Definition of rotunda
—see fenestra rotunda
Learn More about rotunda
Britannica.com: Encyclopedia article about rotunda
Seen and Heard
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