From Longman Dictionary of Contemporary Englishrotundaro‧tun‧da /rəʊˈtʌndə $ roʊ-/ noun [countable] TBBa round building or hall, especially one with a dome
Examples from the Corpus
rotunda• At a rotunda devoted to the death of Stalin people were chuckling.• I had been arrested in the Capitol rotunda for a nonviolent protest the day the House passed its version of the bill.• The Flat Earth Society must be successfully signing up members in the Capitol rotunda.• Each rotunda was devoted to a different aspect of recent Czech history.• At the park entrance is that familiar little rotunda.• More than £5,000 was raised, and this will be used for planting the garden and park surrounding Ickworth's rotunda.• But here, in the rotunda of the Astor House, a nickel would buy only a glass of beer.• The rotunda was demolished in 1804.Origin rotunda (1600-1700) Italian rotonda, from Latin rotundus; → ROUND2 