Definition of voussoir in English:

voussoir

Line breaks: vous|soir
Pronunciation: /ˈvuːswɑː
 
/

noun

Architecture
  • A wedge-shaped or tapered stone used to construct an arch.
    More example sentences
    • This tomb is notable because it introduced for the first time in India the principle of the true arch with radiating voussoirs.
    • It has to be remembered that even repeated patterns round a window required different models for each side, as well as for the voussoirs, keystone, and stop-ends, each of which had to be specially drawn.
    • At the underside of the sixth floor, the atrium narrows to a small opening encircled by polished granite voussoirs.

Origin

early 18th cent: via French from popular Latin volsorium, based on Latin volvere 'to roll'. The word, borrowed from Old French, was also used for a time in late Middle English.

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