rotunda

A round building, usually small, often with a dome.
A Gothic typeface used in early printed books in Northern Italy, based on a rounded script developed in the 13th cent.; the manuscript hand on which this typeface was based.
(Philippines, alt-of, alternative) Alternative spelling of rotonda.
A form of cupola that has pentagons rather than squares or rectangles.

Pronounced as (IPA)

/ɹə(ʊ)ˈtʌndə/

Learned borrowing from Latin rotunda, from rotundus (“round”). In the architectural sense, from Sancta Maria Rotunda (the name for a church in the Pantheon).