voussoir Hear it!

voussoir definition

vous·soir (vo̵̅o̅ swär′)

noun

Archit. any of the wedge-shaped stones of which an arch or vault is built

Etymology: Fr < OFr volsoir, curvature of a vault < VL *volsorium < *volsus, for L volutus, pp. of volvere, to roll: see walk

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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