noun
EXAMPLES FROM CORPUS
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An ambulatory round the central octagon joins together the four chapels of the smaller ones.
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At four corners are smaller octagons, replicas in design of the large one and all very tall.
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Here, the old central tower over the crossing was replaced by the unique octagon and lantern.
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Loops of wire pressed octagons into her face, just below the hairline, imprinting a headdress of chains.
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The big trap in dealing with the Duveen Galleries is the centre octagon .
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The result should be a perfect octagon .
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This main octagon is the central chamber or nave.