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US /æps/
UK /æps/
1.
abside
a large semicircular or polygonal recess in a church, arched or with a domed roof, typically at the eastern end, and usually containing the altar.
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The choir stood in the apse, their voices echoing through the church.
O coro estava na abside, suas vozes ecoando pela igreja.
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Many ancient Roman basilicas featured a prominent apse.
Muitas basílicas romanas antigas apresentavam uma abside proeminente.